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23131012415412 = 22311467375235423
BaseRepresentation
bin1010100001001100110111…
…10001110011111110110100
310000220022012000201001120210
411100212123301303332310
511012434303134243122
6121110123532225420
74605106023313536
oct520463361637664
9100808160631523
1023131012415412
1174088975365a0
122716b4130b270
13cba325681725
1459d792c7d856
152a1a5627340c
hex15099bc73fb4

23131012415412 has 48 divisors (see below), whose sum is σ = 59005019953152. Its totient is φ = 6994388266080.

The previous prime is 23131012415339. The next prime is 23131012415419. The reversal of 23131012415412 is 21451421013132.

It is a self number, because there is not a number n which added to its sum of digits gives 23131012415412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131012415419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187556068 + ... + 187679355.

It is an arithmetic number, because the mean of its divisors is an integer number (1229271249024).

Almost surely, 223131012415412 is an apocalyptic number.

23131012415412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23131012415412 is an abundant number, since it is smaller than the sum of its proper divisors (35874007537740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131012415412 is a wasteful number, since it uses less digits than its factorization.

23131012415412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375235908 (or 375235906 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 23131012415412 its reverse (21451421013132), we get a palindrome (44582433428544).

The spelling of 23131012415412 in words is "twenty-three trillion, one hundred thirty-one billion, twelve million, four hundred fifteen thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 467 934 1401 1868 2802 5137 5604 10274 15411 20548 30822 61644 375235423 750470846 1125706269 1500941692 2251412538 4127589653 4502825076 8255179306 12382768959 16510358612 24765537918 49531075836 175234942541 350469885082 525704827623 700939770164 1051409655246 1927584367951 2102819310492 3855168735902 5782753103853 7710337471804 11565506207706 23131012415412