83800921231 has 32 divisors (see below), whose sum is σ = 90836403840. Its totient is φ = 77146546176.

The previous prime is 83800921147. The next prime is 83800921247. The reversal of 83800921231 is 13212900838.

It is a cyclic number.

It is not a de Polignac number, because 83800921231 - 2⁹ = 83800920719 is a prime.

It is a super-2 number, since 2×83800921231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83800921331) 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, 10716435 + ... + 10724251.

It is an arithmetic number, because the mean of its divisors is an integer number (2838637620).

Almost surely, 2^83800921231 is an apocalyptic number.

83800921231 is a deficient number, since it is larger than the sum of its proper divisors (7035482609).

83800921231 is a wasteful number, since it uses less digits than its factorization.

83800921231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 83800921231 in words is "eighty-three billion, eight hundred million, nine hundred twenty-one thousand, two hundred thirty-one".