1512312132331 has 48 divisors (see below), whose sum is σ = 2042054426880. Its totient is φ = 1087574117760.

The previous prime is 1512312132329. The next prime is 1512312132343. The reversal of 1512312132331 is 1332312132151.

It is not a de Polignac number, because 1512312132331 - 2¹ = 1512312132329 is a prime.

It is a super-2 number, since 2×1512312132331² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1512312132331.

It is not an unprimeable number, because it can be changed into a prime (1512312132311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126727641 + ... + 126739573.

It is an arithmetic number, because the mean of its divisors is an integer number (42542800560).

Almost surely, 2^{1512312132331} is an apocalyptic number.

1512312132331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1512312132331 is a deficient number, since it is larger than the sum of its proper divisors (529742294549).

1512312132331 is a wasteful number, since it uses less digits than its factorization.

1512312132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21716 (or 21703 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

Adding to 1512312132331 its reverse (1332312132151), we get a palindrome (2844624264482).

The spelling of 1512312132331 in words is "one trillion, five hundred twelve billion, three hundred twelve million, one hundred thirty-two thousand, three hundred thirty-one".