12052161315 has 40 divisors (see below), whose sum is σ = 21958834128. Its totient is φ = 6322432320.

The previous prime is 12052161287. The next prime is 12052161323. The reversal of 12052161315 is 51316125021.

12052161315 is a `hidden beast` number, since 1 + 2 + 0 + 521 + 6 + 131 + 5 = 666.

It is not a de Polignac number, because 12052161315 - 2²⁹ = 11515290403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 219217 + ... + 268626.

Almost surely, 2^12052161315 is an apocalyptic number.

12052161315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12052161315 is a deficient number, since it is larger than the sum of its proper divisors (9906672813).

12052161315 is an equidigital number, since it uses as much as digits as its factorization.

12052161315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487921 (or 487912 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

Adding to 12052161315 its reverse (51316125021), we get a palindrome (63368286336).

The spelling of 12052161315 in words is "twelve billion, fifty-two million, one hundred sixty-one thousand, three hundred fifteen".