18051123102 has 16 divisors (see below), whose sum is σ = 36216137232. Its totient is φ = 5998059200.

The previous prime is 18051123053. The next prime is 18051123119. The reversal of 18051123102 is 20132115081.

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, 4743399 + ... + 4747202.

It is an arithmetic number, because the mean of its divisors is an integer number (2263508577).

Almost surely, 2^18051123102 is an apocalyptic number.

18051123102 is an abundant number, since it is smaller than the sum of its proper divisors (18165014130).

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

18051123102 is a wasteful number, since it uses less digits than its factorization.

18051123102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490923.

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 18051123102 its reverse (20132115081), we get a palindrome (38183238183).

The spelling of 18051123102 in words is "eighteen billion, fifty-one million, one hundred twenty-three thousand, one hundred two".