213431321124 has 36 divisors (see below), whose sum is σ = 616579372864. Its totient is φ = 60980377392.

The previous prime is 213431321119. The next prime is 213431321153. The reversal of 213431321124 is 421123134312.

213431321124 is a `hidden beast` number, since 2 + 13 + 431 + 3 + 211 + 2 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423474592 + ... + 423475095.

Almost surely, 2^213431321124 is an apocalyptic number.

It is an amenable number.

213431321124 is an abundant number, since it is smaller than the sum of its proper divisors (403148051740).

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

213431321124 is a wasteful number, since it uses less digits than its factorization.

213431321124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846949704 (or 846949699 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 213431321124 its reverse (421123134312), we get a palindrome (634554455436).

The spelling of 213431321124 in words is "two hundred thirteen billion, four hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty-four".