213113034392721 has 8 divisors (see below), whose sum is σ = 284151505428384. Its totient is φ = 142074959809440.

The previous prime is 213113034392663. The next prime is 213113034392729. The reversal of 213113034392721 is 127293430311312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213113034392721 - 2¹³ = 213113034384529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213113034392729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97856535 + ... + 100010636.

It is an arithmetic number, because the mean of its divisors is an integer number (35518938178548).

Almost surely, 2^{213113034392721} is an apocalyptic number.

It is an amenable number.

213113034392721 is a deficient number, since it is larger than the sum of its proper divisors (71038471035663).

213113034392721 is a wasteful number, since it uses less digits than its factorization.

213113034392721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198226191.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 213113034392721 in words is "two hundred thirteen trillion, one hundred thirteen billion, thirty-four million, three hundred ninety-two thousand, seven hundred twenty-one".