23323452324520 has 32 divisors (see below), whose sum is σ = 52478687190600. Its totient is φ = 9329217470208.

The previous prime is 23323452324467. The next prime is 23323452324521. The reversal of 23323452324520 is 2542325432332.

It can be written as a sum of positive squares in 4 ways, for example, as 10753690435524 + 12569761888996 = 3279282^2 + 3545386^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (23323452324521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783535 + ... + 7375294.

Almost surely, 2^{23323452324520} is an apocalyptic number.

23323452324520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23323452324520 is an abundant number, since it is smaller than the sum of its proper divisors (29155234866080).

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

23323452324520 is a wasteful number, since it uses less digits than its factorization.

23323452324520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10216237 (or 10216233 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 40.

Adding to 23323452324520 its reverse (2542325432332), we get a palindrome (25865777756852).

The spelling of 23323452324520 in words is "twenty-three trillion, three hundred twenty-three billion, four hundred fifty-two million, three hundred twenty-four thousand, five hundred twenty".