23305321724620 has 72 divisors (see below), whose sum is σ = 53006285636640. Its totient is φ = 8603286382080.

The previous prime is 23305321724609. The next prime is 23305321724743. The reversal of 23305321724620 is 2642712350332.

It is a super-2 number, since 2×23305321724620² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15925360 + ... + 17327080.

It is an arithmetic number, because the mean of its divisors is an integer number (736198411620).

Almost surely, 2^{23305321724620} is an apocalyptic number.

23305321724620 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 23305321724620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26503142818320).

23305321724620 is an abundant number, since it is smaller than the sum of its proper divisors (29700963912020).

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

23305321724620 is a wasteful number, since it uses less digits than its factorization.

23305321724620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406675 (or 1406660 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 23305321724620 in words is "twenty-three trillion, three hundred five billion, three hundred twenty-one million, seven hundred twenty-four thousand, six hundred twenty".