213231304120 has 32 divisors (see below), whose sum is σ = 479848986720. Its totient is φ = 85278556800.

The previous prime is 213231304067. The next prime is 213231304151. The reversal of 213231304120 is 21403132312.

It is a junction number, because it is equal to n+sod(n) for n = 213231304091 and 213231304100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187287 + ... + 679366.

It is an arithmetic number, because the mean of its divisors is an integer number (14995280835).

Almost surely, 2^213231304120 is an apocalyptic number.

213231304120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213231304120 is an abundant number, since it is smaller than the sum of its proper divisors (266617682600).

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

213231304120 is a wasteful number, since it uses less digits than its factorization.

213231304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872815 (or 872811 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 213231304120 its reverse (21403132312), we get a palindrome (234634436432).

The spelling of 213231304120 in words is "two hundred thirteen billion, two hundred thirty-one million, three hundred four thousand, one hundred twenty".