23021013013320 has 256 divisors, whose sum is σ = 79276245350400. Its totient is φ = 5238825984000.

The previous prime is 23021013013319. The next prime is 23021013013421. The reversal of 23021013013320 is 2331031012032.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 543735192 + ... + 543777528.

It is an arithmetic number, because the mean of its divisors is an integer number (309672833400).

Almost surely, 2^{23021013013320} is an apocalyptic number.

23021013013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021013013320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39638122675200).

23021013013320 is an abundant number, since it is smaller than the sum of its proper divisors (56255232337080).

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

23021013013320 is a wasteful number, since it uses less digits than its factorization.

23021013013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45188 (or 45184 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23021013013320 its reverse (2331031012032), we get a palindrome (25352044025352).

The spelling of 23021013013320 in words is "twenty-three trillion, twenty-one billion, thirteen million, thirteen thousand, three hundred twenty".