213507138411 has 48 divisors (see below), whose sum is σ = 369875681280. Its totient is φ = 121365170640.

The previous prime is 213507138353. The next prime is 213507138413. The reversal of 213507138411 is 114831705312.

213507138411 is a `hidden beast` number, since 2 + 1 + 3 + 507 + 138 + 4 + 11 = 666.

It is not a de Polignac number, because 213507138411 - 2⁶ = 213507138347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213507138413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169771 + ... + 675156.

It is an arithmetic number, because the mean of its divisors is an integer number (7705743360).

Almost surely, 2^213507138411 is an apocalyptic number.

213507138411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213507138411 is a deficient number, since it is larger than the sum of its proper divisors (156368542869).

213507138411 is a wasteful number, since it uses less digits than its factorization.

213507138411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845141 (or 845128 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 213507138411 in words is "two hundred thirteen billion, five hundred seven million, one hundred thirty-eight thousand, four hundred eleven".