1020179231631 has 36 divisors (see below), whose sum is σ = 1716396848712. Its totient is φ = 582205214304.

The previous prime is 1020179231627. The next prime is 1020179231647. The reversal of 1020179231631 is 1361329710201.

1020179231631 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 17 + 9 + 2 + 3 + 1 + 631 = 666.

It is not a de Polignac number, because 1020179231631 - 2² = 1020179231627 is a prime.

It is a super-2 number, since 2×1020179231631² (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 (1020179231681) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1155441 + ... + 1837226.

It is an arithmetic number, because the mean of its divisors is an integer number (47677690242).

Almost surely, 2^{1020179231631} is an apocalyptic number.

1020179231631 is a deficient number, since it is larger than the sum of its proper divisors (696217617081).

1020179231631 is a wasteful number, since it uses less digits than its factorization.

1020179231631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993460 (or 2993450 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 1020179231631 in words is "one trillion, twenty billion, one hundred seventy-nine million, two hundred thirty-one thousand, six hundred thirty-one".