90231233202 has 160 divisors (see below), whose sum is σ = 228198643200. Its totient is φ = 26400556800.

The previous prime is 90231233201. The next prime is 90231233227. The reversal of 90231233202 is 20233213209.

90231233202 is a `hidden beast` number, since 90 + 231 + 23 + 320 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (90231233201) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 28116574 + ... + 28119782.

It is an arithmetic number, because the mean of its divisors is an integer number (1426241520).

Almost surely, 2^90231233202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90231233202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114099321600).

90231233202 is an abundant number, since it is smaller than the sum of its proper divisors (137967409998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90231233202 is a wasteful number, since it uses less digits than its factorization.

90231233202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774 (or 3765 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The spelling of 90231233202 in words is "ninety billion, two hundred thirty-one million, two hundred thirty-three thousand, two hundred two".