12115011054 has 64 divisors (see below), whose sum is σ = 24696541440. Its totient is φ = 3961681920.

The previous prime is 12115011001. The next prime is 12115011061. The reversal of 12115011054 is 45011051121.

It is a self number, because there is not a number n which added to its sum of digits gives 12115011054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43736364 + ... + 43736640.

It is an arithmetic number, because the mean of its divisors is an integer number (385883460).

Almost surely, 2^12115011054 is an apocalyptic number.

12115011054 is an abundant number, since it is smaller than the sum of its proper divisors (12581530386).

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

12115011054 is a wasteful number, since it uses less digits than its factorization.

12115011054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 12115011054 its reverse (45011051121), we get a palindrome (57126062175).

The spelling of 12115011054 in words is "twelve billion, one hundred fifteen million, eleven thousand, fifty-four".