23551354120 has 128 divisors (see below), whose sum is σ = 61899552000. Its totient is φ = 8061301248.

The previous prime is 23551354117. The next prime is 23551354139. The reversal of 23551354120 is 2145315532.

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, 11757039 + ... + 11759041.

It is an arithmetic number, because the mean of its divisors is an integer number (483590250).

Almost surely, 2^23551354120 is an apocalyptic number.

23551354120 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 23551354120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30949776000).

23551354120 is an abundant number, since it is smaller than the sum of its proper divisors (38348197880).

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

23551354120 is a wasteful number, since it uses less digits than its factorization.

23551354120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892 (or 2874 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 23551354120 its reverse (2145315532), we get a palindrome (25696669652).

The spelling of 23551354120 in words is "twenty-three billion, five hundred fifty-one million, three hundred fifty-four thousand, one hundred twenty".