231136286910552 has 384 divisors, whose sum is σ = 651455348544000. Its totient is φ = 73999900477440.

The previous prime is 231136286910547. The next prime is 231136286910563. The reversal of 231136286910552 is 255019682631132.

231136286910552 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 3 + 6 + 2 + 86 + 9 + 1 + 0 + 552 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10218667099 + ... + 10218689717.

It is an arithmetic number, because the mean of its divisors is an integer number (1696498303500).

Almost surely, 2^{231136286910552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231136286910552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325727674272000).

231136286910552 is an abundant number, since it is smaller than the sum of its proper divisors (420319061633448).

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

231136286910552 is a wasteful number, since it uses less digits than its factorization.

231136286910552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23111 (or 23104 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 231136286910552 in words is "two hundred thirty-one trillion, one hundred thirty-six billion, two hundred eighty-six million, nine hundred ten thousand, five hundred fifty-two".