1975155321113 has 32 divisors (see below), whose sum is σ = 2169528883200. Its totient is φ = 1787256700416.

The previous prime is 1975155321067. The next prime is 1975155321119. The reversal of 1975155321113 is 3111235515791.

It is a cyclic number.

It is not a de Polignac number, because 1975155321113 - 2¹⁸ = 1975155058969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1975155321119) 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, 71844056 + ... + 71871542.

It is an arithmetic number, because the mean of its divisors is an integer number (67797777600).

Almost surely, 2^{1975155321113} is an apocalyptic number.

1975155321113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1975155321113 is a deficient number, since it is larger than the sum of its proper divisors (194373562087).

1975155321113 is a wasteful number, since it uses less digits than its factorization.

1975155321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28121.

The product of its digits is 141750, while the sum is 44.

The spelling of 1975155321113 in words is "one trillion, nine hundred seventy-five billion, one hundred fifty-five million, three hundred twenty-one thousand, one hundred thirteen".