23115354220504 has 128 divisors (see below), whose sum is σ = 53483881651200. Its totient is φ = 9120438028800.

The previous prime is 23115354220477. The next prime is 23115354220537. The reversal of 23115354220504 is 40502245351132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 428138199 + ... + 428192185.

It is an arithmetic number, because the mean of its divisors is an integer number (417842825400).

Almost surely, 2^{23115354220504} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23115354220504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26741940825600).

23115354220504 is an abundant number, since it is smaller than the sum of its proper divisors (30368527430696).

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

23115354220504 is a wasteful number, since it uses less digits than its factorization.

23115354220504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55553 (or 55549 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 23115354220504 its reverse (40502245351132), we get a palindrome (63617599571636).

The spelling of 23115354220504 in words is "twenty-three trillion, one hundred fifteen billion, three hundred fifty-four million, two hundred twenty thousand, five hundred four".