231314133412 has 36 divisors (see below), whose sum is σ = 429465290436. Its totient is φ = 108945195520.

The previous prime is 231314133403. The next prime is 231314133431. The reversal of 231314133412 is 214331413132.

It can be written as a sum of positive squares in 6 ways, for example, as 1244255076 + 230069878336 = 35274^2 + 479656^2 .

It is a super-2 number, since 2×231314133412² (a number of 24 digits) contains 22 as substring.

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, 700633 + ... + 976480.

It is an arithmetic number, because the mean of its divisors is an integer number (11929591401).

Almost surely, 2^231314133412 is an apocalyptic number.

It is an amenable number.

231314133412 is a deficient number, since it is larger than the sum of its proper divisors (198151157024).

231314133412 is a wasteful number, since it uses less digits than its factorization.

231314133412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677216 (or 1677185 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 231314133412 its reverse (214331413132), we get a palindrome (445645546544).

The spelling of 231314133412 in words is "two hundred thirty-one billion, three hundred fourteen million, one hundred thirty-three thousand, four hundred twelve".