131311130312 has 16 divisors (see below), whose sum is σ = 260691214860. Its totient is φ = 61793473024.

The previous prime is 131311130309. The next prime is 131311130389. The reversal of 131311130312 is 213031113131.

It can be written as a sum of positive squares in 2 ways, for example, as 116571713476 + 14739416836 = 341426^2 + 121406^2 .

It is a super-2 number, since 2×131311130312² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482761373 + ... + 482761644.

Almost surely, 2^131311130312 is an apocalyptic number.

It is an amenable number.

131311130312 is a deficient number, since it is larger than the sum of its proper divisors (129380084548).

131311130312 is a wasteful number, since it uses less digits than its factorization.

131311130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965523040 (or 965523036 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131311130312 its reverse (213031113131), we get a palindrome (344342243443).

The spelling of 131311130312 in words is "one hundred thirty-one billion, three hundred eleven million, one hundred thirty thousand, three hundred twelve".