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23131121000324 = 2218613107351021
BaseRepresentation
bin1010100001001101000100…
…10000000001111110000100
310000220022110121000202002012
411100212202100001332010
511012440013434002244
6121110142411433352
74605111512262611
oct520464220017604
9100808417022065
1023131121000324
117408942860a97
122716b71755858
13cba34200c95c
1459d7a3467508
152a1a60a7189e
hex1509a2401f84

23131121000324 has 12 divisors (see below), whose sum is σ = 40501213220748. Its totient is φ = 11559345794400.

The previous prime is 23131121000297. The next prime is 23131121000327. The reversal of 23131121000324 is 42300012113132.

It can be written as a sum of positive squares in 2 ways, for example, as 11203547008900 + 11927573991424 = 3347170^2 + 3453632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23131121000324.

It is not an unprimeable number, because it can be changed into a prime (23131121000327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1553668067 + ... + 1553682954.

It is an arithmetic number, because the mean of its divisors is an integer number (3375101101729).

Almost surely, 223131121000324 is an apocalyptic number.

It is an amenable number.

23131121000324 is a deficient number, since it is larger than the sum of its proper divisors (17370092220424).

23131121000324 is a wasteful number, since it uses less digits than its factorization.

23131121000324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3107352886 (or 3107352884 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23131121000324 its reverse (42300012113132), we get a palindrome (65431133113456).

The spelling of 23131121000324 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-four", and thus it is an aban number.

Divisors: 1 2 4 1861 3722 7444 3107351021 6214702042 12429404084 5782780250081 11565560500162 23131121000324