18123101152 has 48 divisors (see below), whose sum is σ = 38566487232. Its totient is φ = 8333591040.

The previous prime is 18123101131. The next prime is 18123101173. The reversal of 18123101152 is 25110132181.

It is an interprime number because it is at equal distance from previous prime (18123101131) and next prime (18123101173).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32358 + ... + 193114.

It is an arithmetic number, because the mean of its divisors is an integer number (803468484).

Almost surely, 2^18123101152 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 18123101152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19283243616).

18123101152 is an abundant number, since it is smaller than the sum of its proper divisors (20443386080).

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

18123101152 is a wasteful number, since it uses less digits than its factorization.

18123101152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161051 (or 161043 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 25.

The spelling of 18123101152 in words is "eighteen billion, one hundred twenty-three million, one hundred one thousand, one hundred fifty-two".