231240001012 has 6 divisors (see below), whose sum is σ = 404670001778. Its totient is φ = 115620000504.

The previous prime is 231240000989. The next prime is 231240001073. The reversal of 231240001012 is 210100042132.

It can be written as a sum of positive squares in only one way, i.e., 231239803876 + 197136 = 480874^2 + 444^2 .

It is a super-2 number, since 2×231240001012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28905000123 + ... + 28905000130.

Almost surely, 2^231240001012 is an apocalyptic number.

It is an amenable number.

231240001012 is a deficient number, since it is larger than the sum of its proper divisors (173430000766).

231240001012 is a wasteful number, since it uses less digits than its factorization.

231240001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57810000257 (or 57810000255 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 231240001012 its reverse (210100042132), we get a palindrome (441340043144).

The spelling of 231240001012 in words is "two hundred thirty-one billion, two hundred forty million, one thousand, twelve".