12155113104 has 40 divisors (see below), whose sum is σ = 31647974400. Its totient is φ = 4019799168.

The previous prime is 12155113097. The next prime is 12155113109. The reversal of 12155113104 is 40131155121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (12155113109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990879 + ... + 1003070.

It is an arithmetic number, because the mean of its divisors is an integer number (791199360).

Almost surely, 2^12155113104 is an apocalyptic number.

It is an amenable number.

12155113104 is an abundant number, since it is smaller than the sum of its proper divisors (19492861296).

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

12155113104 is a wasteful number, since it uses less digits than its factorization.

12155113104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994087 (or 1994081 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

Adding to 12155113104 its reverse (40131155121), we get a palindrome (52286268225).

The spelling of 12155113104 in words is "twelve billion, one hundred fifty-five million, one hundred thirteen thousand, one hundred four".