1310231220112 has 10 divisors (see below), whose sum is σ = 2538572988998. Its totient is φ = 655115610048.

The previous prime is 1310231220083. The next prime is 1310231220209. The reversal of 1310231220112 is 2110221320131.

It can be written as a sum of positive squares in only one way, i.e., 1305543900816 + 4687319296 = 1142604^2 + 68464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1310231220112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40944725613 + ... + 40944725644.

Almost surely, 2^{1310231220112} is an apocalyptic number.

It is an amenable number.

1310231220112 is a deficient number, since it is larger than the sum of its proper divisors (1228341768886).

1310231220112 is an equidigital number, since it uses as much as digits as its factorization.

1310231220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81889451265 (or 81889451259 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1310231220112 its reverse (2110221320131), we get a palindrome (3420452540243).

The spelling of 1310231220112 in words is "one trillion, three hundred ten billion, two hundred thirty-one million, two hundred twenty thousand, one hundred twelve".