1231482313257 has 16 divisors (see below), whose sum is σ = 1878061529472. Its totient is φ = 703135284480.

The previous prime is 1231482313219. The next prime is 1231482313277. The reversal of 1231482313257 is 7523132841321.

It is not a de Polignac number, because 1231482313257 - 2²⁷ = 1231348095529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231482313277) by changing a digit.

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, 23677344 + ... + 23729297.

It is an arithmetic number, because the mean of its divisors is an integer number (117378845592).

Almost surely, 2^{1231482313257} is an apocalyptic number.

It is an amenable number.

1231482313257 is a deficient number, since it is larger than the sum of its proper divisors (646579216215).

1231482313257 is a wasteful number, since it uses less digits than its factorization.

1231482313257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47407888.

The product of its digits is 241920, while the sum is 42.

The spelling of 1231482313257 in words is "one trillion, two hundred thirty-one billion, four hundred eighty-two million, three hundred thirteen thousand, two hundred fifty-seven".