231301302012 has 36 divisors (see below), whose sum is σ = 637830864216. Its totient is φ = 70091303520.

The previous prime is 231301301989. The next prime is 231301302109. The reversal of 231301302012 is 210203103132.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 292046703 + ... + 292047494.

It is an arithmetic number, because the mean of its divisors is an integer number (17717524006).

Almost surely, 2^231301302012 is an apocalyptic number.

231301302012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231301302012 is an abundant number, since it is smaller than the sum of its proper divisors (406529562204).

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

231301302012 is a wasteful number, since it uses less digits than its factorization.

231301302012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584094218 (or 584094213 counting only the distinct ones).

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

Adding to 231301302012 its reverse (210203103132), we get a palindrome (441504405144).

The spelling of 231301302012 in words is "two hundred thirty-one billion, three hundred one million, three hundred two thousand, twelve".