212013113031 has 6 divisors (see below), whose sum is σ = 306241163280. Its totient is φ = 141342075348.

The previous prime is 212013113023. The next prime is 212013113107. The reversal of 212013113031 is 130311310212.

It is not a de Polignac number, because 212013113031 - 2³ = 212013113023 is a prime.

It is a super-2 number, since 2×212013113031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212013112995 and 212013113013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013113531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11778506271 + ... + 11778506288.

It is an arithmetic number, because the mean of its divisors is an integer number (51040193880).

Almost surely, 2^212013113031 is an apocalyptic number.

212013113031 is a deficient number, since it is larger than the sum of its proper divisors (94228050249).

212013113031 is a wasteful number, since it uses less digits than its factorization.

212013113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23557012565 (or 23557012562 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 212013113031 its reverse (130311310212), we get a palindrome (342324423243).

The spelling of 212013113031 in words is "two hundred twelve billion, thirteen million, one hundred thirteen thousand, thirty-one".