23998135120 has 20 divisors (see below), whose sum is σ = 55795664340. Its totient is φ = 9599254016.

The previous prime is 23998135099. The next prime is 23998135141. The reversal of 23998135120 is 2153189932.

It is an interprime number because it is at equal distance from previous prime (23998135099) and next prime (23998135141).

It can be written as a sum of positive squares in 2 ways, for example, as 6343166736 + 17654968384 = 79644^2 + 132872^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×23998135120³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149988265 + ... + 149988424.

It is an arithmetic number, because the mean of its divisors is an integer number (2789783217).

Almost surely, 2^23998135120 is an apocalyptic number.

23998135120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23998135120 is an abundant number, since it is smaller than the sum of its proper divisors (31797529220).

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

23998135120 is a wasteful number, since it uses less digits than its factorization.

23998135120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299976702 (or 299976696 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 23998135120 in words is "twenty-three billion, nine hundred ninety-eight million, one hundred thirty-five thousand, one hundred twenty".