1312200231332 has 12 divisors (see below), whose sum is σ = 2305285622220. Its totient is φ = 653547196416.

The previous prime is 1312200231323. The next prime is 1312200231341. The reversal of 1312200231332 is 2331320022131.

It is an interprime number because it is at equal distance from previous prime (1312200231323) and next prime (1312200231341).

It can be written as a sum of positive squares in 2 ways, for example, as 1189984266496 + 122215964836 = 1090864^2 + 349594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1312200231298 and 1312200231307.

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, 638228657 + ... + 638230712.

It is an arithmetic number, because the mean of its divisors is an integer number (192107135185).

Almost surely, 2^{1312200231332} is an apocalyptic number.

It is an amenable number.

1312200231332 is a deficient number, since it is larger than the sum of its proper divisors (993085390888).

1312200231332 is a wasteful number, since it uses less digits than its factorization.

1312200231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276459630 (or 1276459628 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1312200231332 its reverse (2331320022131), we get a palindrome (3643520253463).

The spelling of 1312200231332 in words is "one trillion, three hundred twelve billion, two hundred million, two hundred thirty-one thousand, three hundred thirty-two".