12155533113 has 16 divisors (see below), whose sum is σ = 16375778496. Its totient is φ = 8019566400.

The previous prime is 12155533087. The next prime is 12155533121. The reversal of 12155533113 is 31133555121.

It is not a de Polignac number, because 12155533113 - 2⁹ = 12155532601 is a prime.

It is a super-2 number, since 2×12155533113² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12155533183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 702595 + ... + 719687.

It is an arithmetic number, because the mean of its divisors is an integer number (1023486156).

Almost surely, 2^12155533113 is an apocalyptic number.

It is an amenable number.

12155533113 is a deficient number, since it is larger than the sum of its proper divisors (4220245383).

12155533113 is a wasteful number, since it uses less digits than its factorization.

12155533113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19544.

The product of its digits is 6750, while the sum is 30.

The spelling of 12155533113 in words is "twelve billion, one hundred fifty-five million, five hundred thirty-three thousand, one hundred thirteen".