1312232210120 has 64 divisors (see below), whose sum is σ = 3211121294640. Its totient is φ = 479719296000.

The previous prime is 1312232210033. The next prime is 1312232210131. The reversal of 1312232210120 is 210122322131.

It can be written as a sum of positive squares in 8 ways, for example, as 217810756804 + 1094421453316 = 466702^2 + 1046146^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1312232210092 and 1312232210101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12440171 + ... + 12545210.

Almost surely, 2^{1312232210120} is an apocalyptic number.

1312232210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312232210120 is an abundant number, since it is smaller than the sum of its proper divisors (1898889084520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312232210120 is a wasteful number, since it uses less digits than its factorization.

1312232210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24985506 (or 24985502 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1312232210120 its reverse (210122322131), we get a palindrome (1522354532251).

The spelling of 1312232210120 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, two hundred ten thousand, one hundred twenty".