23321322090 has 128 divisors (see below), whose sum is σ = 68237510400. Its totient is φ = 5620849920.

The previous prime is 23321322071. The next prime is 23321322113. The reversal of 23321322090 is 9022312332.

23321322090 is a `hidden beast` number, since 2 + 332 + 1 + 322 + 0 + 9 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 491116 + ... + 536504.

It is an arithmetic number, because the mean of its divisors is an integer number (533105550).

Almost surely, 2^23321322090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23321322090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34118755200).

23321322090 is an abundant number, since it is smaller than the sum of its proper divisors (44916188310).

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

23321322090 is a wasteful number, since it uses less digits than its factorization.

23321322090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45589 (or 45583 counting only the distinct ones).

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

The spelling of 23321322090 in words is "twenty-three billion, three hundred twenty-one million, three hundred twenty-two thousand, ninety".