12113054556 has 24 divisors (see below), whose sum is σ = 28373777040. Its totient is φ = 4021972992.

The previous prime is 12113054543. The next prime is 12113054567. The reversal of 12113054556 is 65545031121.

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, 1960771 + ... + 1966938.

It is an arithmetic number, because the mean of its divisors is an integer number (1182240710).

Almost surely, 2^12113054556 is an apocalyptic number.

It is an amenable number.

12113054556 is an abundant number, since it is smaller than the sum of its proper divisors (16260722484).

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

12113054556 is a wasteful number, since it uses less digits than its factorization.

12113054556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927973 (or 3927971 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 12113054556 its reverse (65545031121), we get a palindrome (77658085677).

The spelling of 12113054556 in words is "twelve billion, one hundred thirteen million, fifty-four thousand, five hundred fifty-six".