212023012031 has 4 divisors (see below), whose sum is σ = 218862464064. Its totient is φ = 205183560000.

The previous prime is 212023012009. The next prime is 212023012073. The reversal of 212023012031 is 130210320212.

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

It is a cyclic number.

It is not a de Polignac number, because 212023012031 - 2¹⁰ = 212023011007 is a prime.

It is a super-2 number, since 2×212023012031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023002031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3419725970 + ... + 3419726031.

It is an arithmetic number, because the mean of its divisors is an integer number (54715616016).

Almost surely, 2^212023012031 is an apocalyptic number.

212023012031 is a deficient number, since it is larger than the sum of its proper divisors (6839452033).

212023012031 is an equidigital number, since it uses as much as digits as its factorization.

212023012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839452032.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212023012031 its reverse (130210320212), we get a palindrome (342233332243).

The spelling of 212023012031 in words is "two hundred twelve billion, twenty-three million, twelve thousand, thirty-one".