1231312203032 has 16 divisors (see below), whose sum is σ = 2365020390600. Its totient is φ = 600640098880.

The previous prime is 1231312202987. The next prime is 1231312203193. The reversal of 1231312203032 is 2303022131321.

It is a super-2 number, since 2×1231312203032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231312202989 and 1231312203007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1876999982 + ... + 1877000637.

Almost surely, 2^{1231312203032} is an apocalyptic number.

It is an amenable number.

1231312203032 is a deficient number, since it is larger than the sum of its proper divisors (1133708187568).

1231312203032 is a wasteful number, since it uses less digits than its factorization.

1231312203032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3754000666 (or 3754000662 counting only the distinct ones).

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

Adding to 1231312203032 its reverse (2303022131321), we get a palindrome (3534334334353).

The spelling of 1231312203032 in words is "one trillion, two hundred thirty-one billion, three hundred twelve million, two hundred three thousand, thirty-two".