232121103213 has 32 divisors (see below), whose sum is σ = 328798863360. Its totient is φ = 145426921920.

The previous prime is 232121103169. The next prime is 232121103251. The reversal of 232121103213 is 312301121232.

It is not a de Polignac number, because 232121103213 - 2⁸ = 232121102957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232121103213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232121103113) 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, 524068 + ... + 859586.

It is an arithmetic number, because the mean of its divisors is an integer number (10274964480).

Almost surely, 2^232121103213 is an apocalyptic number.

It is an amenable number.

232121103213 is a deficient number, since it is larger than the sum of its proper divisors (96677760147).

232121103213 is a wasteful number, since it uses less digits than its factorization.

232121103213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335769.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 232121103213 its reverse (312301121232), we get a palindrome (544422224445).

The spelling of 232121103213 in words is "two hundred thirty-two billion, one hundred twenty-one million, one hundred three thousand, two hundred thirteen".