232011504520 has 64 divisors (see below), whose sum is σ = 553820036400. Its totient is φ = 87173775360.

The previous prime is 232011504457. The next prime is 232011504533. The reversal of 232011504520 is 25405110232.

It can be written as a sum of positive squares in 8 ways, for example, as 183480295716 + 48531208804 = 428346^2 + 220298^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10960 + ... + 681280.

Almost surely, 2^232011504520 is an apocalyptic number.

232011504520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232011504520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276910018200).

232011504520 is an abundant number, since it is smaller than the sum of its proper divisors (321808531880).

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

232011504520 is a wasteful number, since it uses less digits than its factorization.

232011504520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670858 (or 670854 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 232011504520 its reverse (25405110232), we get a palindrome (257416614752).

The spelling of 232011504520 in words is "two hundred thirty-two billion, eleven million, five hundred four thousand, five hundred twenty".