213111322023 has 16 divisors (see below), whose sum is σ = 300875977440. Its totient is φ = 133711159296.

The previous prime is 213111321991. The next prime is 213111322063. The reversal of 213111322023 is 320223111312.

It is not a de Polignac number, because 213111322023 - 2⁵ = 213111321991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111322063) 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, 1324213 + ... + 1476401.

It is an arithmetic number, because the mean of its divisors is an integer number (18804748590).

Almost surely, 2^213111322023 is an apocalyptic number.

213111322023 is a deficient number, since it is larger than the sum of its proper divisors (87764655417).

213111322023 is a wasteful number, since it uses less digits than its factorization.

213111322023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179666.

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

Adding to 213111322023 its reverse (320223111312), we get a palindrome (533334433335).

The spelling of 213111322023 in words is "two hundred thirteen billion, one hundred eleven million, three hundred twenty-two thousand, twenty-three".