83930621131 has 12 divisors (see below), whose sum is σ = 98004825072. Its totient is φ = 71666983248.

The previous prime is 83930621123. The next prime is 83930621153. The reversal of 83930621131 is 13112603938.

It is not a de Polignac number, because 83930621131 - 2³ = 83930621123 is a prime.

It is a super-2 number, since 2×83930621131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83930621531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3243520 + ... + 3269293.

It is an arithmetic number, because the mean of its divisors is an integer number (8167068756).

Almost surely, 2^83930621131 is an apocalyptic number.

83930621131 is a deficient number, since it is larger than the sum of its proper divisors (14074203941).

83930621131 is a wasteful number, since it uses less digits than its factorization.

83930621131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513090 (or 6513083 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 83930621131 in words is "eighty-three billion, nine hundred thirty million, six hundred twenty-one thousand, one hundred thirty-one".