1355997984031 has 32 divisors (see below), whose sum is σ = 1480453977600. Its totient is φ = 1237595656320.

The previous prime is 1355997983929. The next prime is 1355997984037. The reversal of 1355997984031 is 1304897995531.

It is a cyclic number.

It is not a de Polignac number, because 1355997984031 - 2⁹ = 1355997983519 is a prime.

It is a super-2 number, since 2×1355997984031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355997984037) 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, 30802446 + ... + 30846436.

It is an arithmetic number, because the mean of its divisors is an integer number (46264186800).

Almost surely, 2^{1355997984031} is an apocalyptic number.

1355997984031 is a deficient number, since it is larger than the sum of its proper divisors (124455993569).

1355997984031 is a wasteful number, since it uses less digits than its factorization.

1355997984031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44479.

The product of its (nonzero) digits is 36741600, while the sum is 64.

The spelling of 1355997984031 in words is "one trillion, three hundred fifty-five billion, nine hundred ninety-seven million, nine hundred eighty-four thousand, thirty-one".