231340303212 has 48 divisors (see below), whose sum is σ = 543620270592. Its totient is φ = 76567533120.

The previous prime is 231340303211. The next prime is 231340303213. The reversal of 231340303212 is 212303043132.

It is an interprime number because it is at equal distance from previous prime (231340303211) and next prime (231340303213).

It is not an unprimeable number, because it can be changed into a prime (231340303211) 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 15 ways as a sum of consecutive naturals, for example, 2637787 + ... + 2724077.

It is an arithmetic number, because the mean of its divisors is an integer number (11325422304).

Almost surely, 2^231340303212 is an apocalyptic number.

It is an amenable number.

231340303212 is an abundant number, since it is smaller than the sum of its proper divisors (312279967380).

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

231340303212 is a wasteful number, since it uses less digits than its factorization.

231340303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87878 (or 87876 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231340303212 its reverse (212303043132), we get a palindrome (443643346344).

The spelling of 231340303212 in words is "two hundred thirty-one billion, three hundred forty million, three hundred three thousand, two hundred twelve".