232505112130521 has 32 divisors (see below), whose sum is σ = 312091119244800. Its totient is φ = 153964970880000.

The previous prime is 232505112130493. The next prime is 232505112130541. The reversal of 232505112130521 is 125031211505232.

It is not a de Polignac number, because 232505112130521 - 2⁹ = 232505112130009 is a prime.

It is a super-2 number, since 2×232505112130521² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232505112130541) 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, 679742086 + ... + 680084048.

It is an arithmetic number, because the mean of its divisors is an integer number (9752847476400).

Almost surely, 2^{232505112130521} is an apocalyptic number.

It is an amenable number.

232505112130521 is a deficient number, since it is larger than the sum of its proper divisors (79586007114279).

232505112130521 is a wasteful number, since it uses less digits than its factorization.

232505112130521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344677.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 232505112130521 its reverse (125031211505232), we get a palindrome (357536323635753).

The spelling of 232505112130521 in words is "two hundred thirty-two trillion, five hundred five billion, one hundred twelve million, one hundred thirty thousand, five hundred twenty-one".