213112012023 has 24 divisors (see below), whose sum is σ = 317788323840. Its totient is φ = 137478678480.

The previous prime is 213112011989. The next prime is 213112012067. The reversal of 213112012023 is 320210211312.

It is not a de Polignac number, because 213112012023 - 2¹⁴ = 213111995639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213112011987 and 213112012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213112012093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3586090 + ... + 3645032.

It is an arithmetic number, because the mean of its divisors is an integer number (13241180160).

Almost surely, 2^213112012023 is an apocalyptic number.

213112012023 is a deficient number, since it is larger than the sum of its proper divisors (104676311817).

213112012023 is a wasteful number, since it uses less digits than its factorization.

213112012023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71939 (or 71936 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213112012023 its reverse (320210211312), we get a palindrome (533322223335).

The spelling of 213112012023 in words is "two hundred thirteen billion, one hundred twelve million, twelve thousand, twenty-three".