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23131223424210 = 235112343571124123
BaseRepresentation
bin1010100001001101010000…
…10110101111110011010010
310000220022201201202102020110
411100212220112233303102
511012440221144033320
6121110200511022150
74605114165001536
oct520465026576322
9100808651672213
1023131223424210
117408995658630
122716b9bb0a956
13cba35a2c17c5
1459d7b2cc9bc6
152a1a69a545e0
hex1509a85afcd2

23131223424210 has 256 divisors, whose sum is σ = 64778285924352. Its totient is φ = 5229805996800.

The previous prime is 23131223424163. The next prime is 23131223424271. The reversal of 23131223424210 is 1242432213132.

It is a happy number.

It is a super-2 number, since 2×231312234242102 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 186295209 + ... + 186419331.

It is an arithmetic number, because the mean of its divisors is an integer number (253040179392).

Almost surely, 223131223424210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23131223424210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32389142962176).

23131223424210 is an abundant number, since it is smaller than the sum of its proper divisors (41647062500142).

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

23131223424210 is a wasteful number, since it uses less digits than its factorization.

23131223424210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124781.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 23131223424210 its reverse (1242432213132), we get a palindrome (24373655637342).

The spelling of 23131223424210 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty-three million, four hundred twenty-four thousand, two hundred ten".