23003500043520 has 108 divisors (see below), whose sum is σ = 79589713992516. Its totient is φ = 6134266675200.

The previous prime is 23003500043509. The next prime is 23003500043663. The reversal of 23003500043520 is 2534000530032.

23003500043520 is a `hidden beast` number, since 2 + 300 + 3 + 5 + 0 + 0 + 0 + 4 + 352 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12367657165824 + 10635842877696 = 3516768^2 + 3261264^2 .

It is a super-2 number, since 2×23003500043520² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 998404281 + ... + 998427320.

It is an arithmetic number, because the mean of its divisors is an integer number (736941796227).

Almost surely, 2^{23003500043520} is an apocalyptic number.

23003500043520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003500043520 is an abundant number, since it is smaller than the sum of its proper divisors (56586213948996).

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

23003500043520 is a wasteful number, since it uses less digits than its factorization.

23003500043520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996831628 (or 1996831611 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

Adding to 23003500043520 its reverse (2534000530032), we get a palindrome (25537500573552).

The spelling of 23003500043520 in words is "twenty-three trillion, three billion, five hundred million, forty-three thousand, five hundred twenty".