2331031212 has 18 divisors (see below), whose sum is σ = 5892328988. Its totient is φ = 777010392.

The previous prime is 2331031189. The next prime is 2331031229. The reversal of 2331031212 is 2121301332.

2331031212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2331031212² = 10867413022636377888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32375398 + ... + 32375469.

Almost surely, 2^2331031212 is an apocalyptic number.

It is an amenable number.

2331031212 is an abundant number, since it is smaller than the sum of its proper divisors (3561297776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2331031212 is a wasteful number, since it uses less digits than its factorization.

2331031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64750877 (or 64750872 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2331031212 is about 48280.7540537635. The cubic root of 2331031212 is about 1325.9160556456.

Adding to 2331031212 its reverse (2121301332), we get a palindrome (4452332544).

The spelling of 2331031212 in words is "two billion, three hundred thirty-one million, thirty-one thousand, two hundred twelve".