23151430431120 has 320 divisors, whose sum is σ = 78375921120000. Its totient is φ = 5630908243968.

The previous prime is 23151430431089. The next prime is 23151430431127. The reversal of 23151430431120 is 2113403415132.

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

It is not an unprimeable number, because it can be changed into a prime (23151430431127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45900942 + ... + 46402578.

It is an arithmetic number, because the mean of its divisors is an integer number (244924753500).

Almost surely, 2^{23151430431120} is an apocalyptic number.

23151430431120 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 23151430431120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39187960560000).

23151430431120 is an abundant number, since it is smaller than the sum of its proper divisors (55224490688880).

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

23151430431120 is a wasteful number, since it uses less digits than its factorization.

23151430431120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502050 (or 502044 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 23151430431120 its reverse (2113403415132), we get a palindrome (25264833846252).

The spelling of 23151430431120 in words is "twenty-three trillion, one hundred fifty-one billion, four hundred thirty million, four hundred thirty-one thousand, one hundred twenty".