231520751106 has 64 divisors (see below), whose sum is σ = 483712819200. Its totient is φ = 73789372800.

The previous prime is 231520751047. The next prime is 231520751107. The reversal of 231520751106 is 601157025132.

It is not an unprimeable number, because it can be changed into a prime (231520751107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25803201 + ... + 25812171.

It is an arithmetic number, because the mean of its divisors is an integer number (7558012800).

Almost surely, 2^231520751106 is an apocalyptic number.

231520751106 is an abundant number, since it is smaller than the sum of its proper divisors (252192068094).

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

231520751106 is a wasteful number, since it uses less digits than its factorization.

231520751106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10655.

The product of its (nonzero) digits is 12600, while the sum is 33.

Adding to 231520751106 its reverse (601157025132), we get a palindrome (832677776238).

The spelling of 231520751106 in words is "two hundred thirty-one billion, five hundred twenty million, seven hundred fifty-one thousand, one hundred six".