12115554053 has 4 divisors (see below), whose sum is σ = 12397311168. Its totient is φ = 11833796940.

The previous prime is 12115554029. The next prime is 12115554071. The reversal of 12115554053 is 35045551121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12115554053 - 2⁸ = 12115553797 is a prime.

It is a super-2 number, since 2×12115554053² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115550053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140878493 + ... + 140878578.

It is an arithmetic number, because the mean of its divisors is an integer number (3099327792).

Almost surely, 2^12115554053 is an apocalyptic number.

It is an amenable number.

12115554053 is a deficient number, since it is larger than the sum of its proper divisors (281757115).

12115554053 is an equidigital number, since it uses as much as digits as its factorization.

12115554053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281757114.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 12115554053 in words is "twelve billion, one hundred fifteen million, five hundred fifty-four thousand, fifty-three".