23151420124 has 96 divisors (see below), whose sum is σ = 50880614400. Its totient is φ = 8993825280.

The previous prime is 23151420121. The next prime is 23151420133. The reversal of 23151420124 is 42102415132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151420121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1459902 + ... + 1475674.

It is an arithmetic number, because the mean of its divisors is an integer number (530006400).

Almost surely, 2^23151420124 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 23151420124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25440307200).

23151420124 is an abundant number, since it is smaller than the sum of its proper divisors (27729194276).

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

23151420124 is a wasteful number, since it uses less digits than its factorization.

23151420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15923 (or 15921 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 23151420124 its reverse (42102415132), we get a palindrome (65253835256).

The spelling of 23151420124 in words is "twenty-three billion, one hundred fifty-one million, four hundred twenty thousand, one hundred twenty-four".