232121020 has 48 divisors (see below), whose sum is σ = 497528640. Its totient is φ = 90948096.

The previous prime is 232121011. The next prime is 232121027. The reversal of 232121020 is 20121232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252121 + ... + 253039.

It is an arithmetic number, because the mean of its divisors is an integer number (10365180).

Almost surely, 2^232121020 is an apocalyptic number.

232121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232121020 is an abundant number, since it is smaller than the sum of its proper divisors (265407620).

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

232121020 is a wasteful number, since it uses less digits than its factorization.

232121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174 (or 1172 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 232121020 is about 15235.5183699144. The cubic root of 232121020 is about 614.5701890310.

Adding to 232121020 its reverse (20121232), we get a palindrome (252242252).

The spelling of 232121020 in words is "two hundred thirty-two million, one hundred twenty-one thousand, twenty".