213705024813 has 24 divisors (see below), whose sum is σ = 368289840960. Its totient is φ = 122117156280.

The previous prime is 213705024779. The next prime is 213705024829. The reversal of 213705024813 is 318420507312.

213705024813 is a `hidden beast` number, since 2 + 1 + 3 + 70 + 502 + 4 + 81 + 3 = 666.

It is not a de Polignac number, because 213705024813 - 2¹² = 213705020717 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213705024613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80763993 + ... + 80766638.

It is an arithmetic number, because the mean of its divisors is an integer number (15345410040).

Almost surely, 2^213705024813 is an apocalyptic number.

It is an amenable number.

213705024813 is a deficient number, since it is larger than the sum of its proper divisors (154584816147).

213705024813 is a wasteful number, since it uses less digits than its factorization.

213705024813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161530654 (or 161530641 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 213705024813 in words is "two hundred thirteen billion, seven hundred five million, twenty-four thousand, eight hundred thirteen".