213212113023 has 16 divisors (see below), whose sum is σ = 349886544896. Its totient is φ = 112463532000.

The previous prime is 213212113013. The next prime is 213212113027. The reversal of 213212113023 is 320311212312.

It is not a de Polignac number, because 213212113023 - 2¹² = 213212108927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212113027) 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, 390498103 + ... + 390498648.

It is an arithmetic number, because the mean of its divisors is an integer number (21867909056).

Almost surely, 2^213212113023 is an apocalyptic number.

213212113023 is a deficient number, since it is larger than the sum of its proper divisors (136674431873).

213212113023 is a wasteful number, since it uses less digits than its factorization.

213212113023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780996774.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213212113023 its reverse (320311212312), we get a palindrome (533523325335).

The spelling of 213212113023 in words is "two hundred thirteen billion, two hundred twelve million, one hundred thirteen thousand, twenty-three".