1328876031231 has 96 divisors (see below), whose sum is σ = 2349301460480. Its totient is φ = 706908384000.

The previous prime is 1328876031229. The next prime is 1328876031239. The reversal of 1328876031231 is 1321306788231.

1328876031231 is a `hidden beast` number, since 1 + 3 + 2 + 8 + 8 + 7 + 603 + 1 + 2 + 31 = 666.

It is not a de Polignac number, because 1328876031231 - 2¹ = 1328876031229 is a prime.

It is a super-2 number, since 2×1328876031231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328876031239) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 79799256 + ... + 79815906.

Almost surely, 2^{1328876031231} is an apocalyptic number.

1328876031231 is a deficient number, since it is larger than the sum of its proper divisors (1020425429249).

1328876031231 is a wasteful number, since it uses less digits than its factorization.

1328876031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17837 (or 17834 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 1328876031231 in words is "one trillion, three hundred twenty-eight billion, eight hundred seventy-six million, thirty-one thousand, two hundred thirty-one".