23017224720 has 480 divisors, whose sum is σ = 90217082880. Its totient is φ = 4821949440.

The previous prime is 23017224683. The next prime is 23017224743. The reversal of 23017224720 is 2742271032.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6924979 + ... + 6928301.

It is an arithmetic number, because the mean of its divisors is an integer number (187952256).

Almost surely, 2^23017224720 is an apocalyptic number.

23017224720 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 23017224720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45108541440).

23017224720 is an abundant number, since it is smaller than the sum of its proper divisors (67199858160).

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

23017224720 is a wasteful number, since it uses less digits than its factorization.

23017224720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3390 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

Adding to 23017224720 its reverse (2742271032), we get a palindrome (25759495752).

The spelling of 23017224720 in words is "twenty-three billion, seventeen million, two hundred twenty-four thousand, seven hundred twenty".