212213131023 has 4 divisors (see below), whose sum is σ = 282950841368. Its totient is φ = 141475420680.

The previous prime is 212213130991. The next prime is 212213131027. The reversal of 212213131023 is 320131312212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 212213131023 - 2⁵ = 212213130991 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 (212213131027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35368855168 + ... + 35368855173.

It is an arithmetic number, because the mean of its divisors is an integer number (70737710342).

Almost surely, 2^212213131023 is an apocalyptic number.

212213131023 is a deficient number, since it is larger than the sum of its proper divisors (70737710345).

212213131023 is an equidigital number, since it uses as much as digits as its factorization.

212213131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70737710344.

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

Adding to 212213131023 its reverse (320131312212), we get a palindrome (532344443235).

The spelling of 212213131023 in words is "two hundred twelve billion, two hundred thirteen million, one hundred thirty-one thousand, twenty-three".