213123321192 has 32 divisors (see below), whose sum is σ = 534389356800. Its totient is φ = 70830299904.

The previous prime is 213123321127. The next prime is 213123321227. The reversal of 213123321192 is 291123321312.

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, 13167192 + ... + 13183367.

It is an arithmetic number, because the mean of its divisors is an integer number (16699667400).

Almost surely, 2^213123321192 is an apocalyptic number.

It is an amenable number.

213123321192 is an abundant number, since it is smaller than the sum of its proper divisors (321266035608).

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

213123321192 is a wasteful number, since it uses less digits than its factorization.

213123321192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26350905 (or 26350901 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The spelling of 213123321192 in words is "two hundred thirteen billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred ninety-two".