23113221554240 has 112 divisors (see below), whose sum is σ = 57980431257600. Its totient is φ = 8751843459072.

The previous prime is 23113221554173. The next prime is 23113221554251. The reversal of 23113221554240 is 4245512231132.

It is a self number, because there is not a number n which added to its sum of digits gives 23113221554240.

It is an unprimeable number.

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, 6290192 + ... + 9262448.

Almost surely, 2^{23113221554240} is an apocalyptic number.

23113221554240 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 23113221554240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28990215628800).

23113221554240 is an abundant number, since it is smaller than the sum of its proper divisors (34867209703360).

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

23113221554240 is a wasteful number, since it uses less digits than its factorization.

23113221554240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973572 (or 2973562 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 23113221554240 its reverse (4245512231132), we get a palindrome (27358733785372).

The spelling of 23113221554240 in words is "twenty-three trillion, one hundred thirteen billion, two hundred twenty-one million, five hundred fifty-four thousand, two hundred forty".