1312520233985 has 32 divisors (see below), whose sum is σ = 1678523333760. Its totient is φ = 982399339008.

The previous prime is 1312520233963. The next prime is 1312520233987. The reversal of 1312520233985 is 5893320252131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1312520233985 - 2⁸ = 1312520233729 is a prime.

It is a super-3 number, since 3×1312520233985³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312520233987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22024589 + ... + 22084101.

It is an arithmetic number, because the mean of its divisors is an integer number (52453854180).

Almost surely, 2^{1312520233985} is an apocalyptic number.

It is an amenable number.

1312520233985 is a deficient number, since it is larger than the sum of its proper divisors (366003099775).

1312520233985 is a wasteful number, since it uses less digits than its factorization.

1312520233985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62417.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 1312520233985 in words is "one trillion, three hundred twelve billion, five hundred twenty million, two hundred thirty-three thousand, nine hundred eighty-five".