231520115124010 has 32 divisors (see below), whose sum is σ = 416893244866560. Its totient is φ = 92573152618752.

The previous prime is 231520115123989. The next prime is 231520115124049. The reversal of 231520115124010 is 10421511025132.

It is a self number, because there is not a number n which added to its sum of digits gives 231520115124010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504163927 + ... + 504622933.

It is an arithmetic number, because the mean of its divisors is an integer number (13027913902080).

Almost surely, 2^{231520115124010} is an apocalyptic number.

231520115124010 is a deficient number, since it is larger than the sum of its proper divisors (185373129742550).

231520115124010 is a wasteful number, since it uses less digits than its factorization.

231520115124010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477910.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 231520115124010 its reverse (10421511025132), we get a palindrome (241941626149142).

The spelling of 231520115124010 in words is "two hundred thirty-one trillion, five hundred twenty billion, one hundred fifteen million, one hundred twenty-four thousand, ten".