213234215013 has 20 divisors (see below), whose sum is σ = 323021479968. Its totient is φ = 140153940360.

The previous prime is 213234214997. The next prime is 213234215027. The reversal of 213234215013 is 310512432312.

213234215013 is a `hidden beast` number, since 2 + 132 + 3 + 4 + 21 + 501 + 3 = 666.

It is not a de Polignac number, because 213234215013 - 2⁴ = 213234214997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213234215053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18533131 + ... + 18544632.

Almost surely, 2^213234215013 is an apocalyptic number.

It is an amenable number.

213234215013 is a deficient number, since it is larger than the sum of its proper divisors (109787264955).

213234215013 is an equidigital number, since it uses as much as digits as its factorization.

213234215013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37077846 (or 37077837 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 213234215013 its reverse (310512432312), we get a palindrome (523746647325).

The spelling of 213234215013 in words is "two hundred thirteen billion, two hundred thirty-four million, two hundred fifteen thousand, thirteen".