231331003212 has 24 divisors (see below), whose sum is σ = 554360783536. Its totient is φ = 75026271168.

The previous prime is 231331003201. The next prime is 231331003223. The reversal of 231331003212 is 212300133132.

It is an interprime number because it is at equal distance from previous prime (231331003201) and next prime (231331003223).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 260507443 + ... + 260508330.

Almost surely, 2^231331003212 is an apocalyptic number.

It is an amenable number.

231331003212 is an abundant number, since it is smaller than the sum of its proper divisors (323029780324).

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

231331003212 is a wasteful number, since it uses less digits than its factorization.

231331003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521015817 (or 521015815 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231331003212 its reverse (212300133132), we get a palindrome (443631136344).

The spelling of 231331003212 in words is "two hundred thirty-one billion, three hundred thirty-one million, three thousand, two hundred twelve".