213113120999 has 16 divisors (see below), whose sum is σ = 224150252832. Its totient is φ = 202421925888.

The previous prime is 213113120951. The next prime is 213113121101. The reversal of 213113120999 is 999021311312.

It is a cyclic number.

It is not a de Polignac number, because 213113120999 - 2⁸ = 213113120743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113120299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156242 + ... + 671295.

It is an arithmetic number, because the mean of its divisors is an integer number (14009390802).

Almost surely, 2^213113120999 is an apocalyptic number.

213113120999 is a deficient number, since it is larger than the sum of its proper divisors (11037131833).

213113120999 is a wasteful number, since it uses less digits than its factorization.

213113120999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827746.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 213113120999 in words is "two hundred thirteen billion, one hundred thirteen million, one hundred twenty thousand, nine hundred ninety-nine".