23012234520 has 64 divisors (see below), whose sum is σ = 75312771840. Its totient is φ = 5578723200.

The previous prime is 23012234491. The next prime is 23012234527. The reversal of 23012234520 is 2543221032.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012234527) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8715436 + ... + 8718075.

It is an arithmetic number, because the mean of its divisors is an integer number (1176762060).

Almost surely, 2^23012234520 is an apocalyptic number.

23012234520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23012234520 is an abundant number, since it is smaller than the sum of its proper divisors (52300537320).

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

23012234520 is a wasteful number, since it uses less digits than its factorization.

23012234520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17433536 (or 17433532 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 23012234520 its reverse (2543221032), we get a palindrome (25555455552).

The spelling of 23012234520 in words is "twenty-three billion, twelve million, two hundred thirty-four thousand, five hundred twenty".