213311122320 has 40 divisors (see below), whose sum is σ = 661264479936. Its totient is φ = 56882965888.

The previous prime is 213311122303. The next prime is 213311122397. The reversal of 213311122320 is 23221113312.

It is a tau number, because it is divible by the number of its divisors (40).

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, 444397932 + ... + 444398411.

Almost surely, 2^213311122320 is an apocalyptic number.

213311122320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213311122320 is an abundant number, since it is smaller than the sum of its proper divisors (447953357616).

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

213311122320 is a wasteful number, since it uses less digits than its factorization.

213311122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888796359 (or 888796353 counting only the distinct ones).

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

Adding to 213311122320 its reverse (23221113312), we get a palindrome (236532235632).

The spelling of 213311122320 in words is "two hundred thirteen billion, three hundred eleven million, one hundred twenty-two thousand, three hundred twenty".