12013165154 has 4 divisors (see below), whose sum is σ = 18019747734. Its totient is φ = 6006582576.

The previous prime is 12013165127. The next prime is 12013165193. The reversal of 12013165154 is 45156131021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45156131021 = 211007 ⋅214003.

It can be written as a sum of positive squares in only one way, i.e., 10075140625 + 1938024529 = 100375^2 + 44023^2 .

It is a super-2 number, since 2×12013165154² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3003291287 + ... + 3003291290.

Almost surely, 2^12013165154 is an apocalyptic number.

12013165154 is a deficient number, since it is larger than the sum of its proper divisors (6006582580).

12013165154 is an equidigital number, since it uses as much as digits as its factorization.

12013165154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006582579.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 12013165154 its reverse (45156131021), we get a palindrome (57169296175).

The spelling of 12013165154 in words is "twelve billion, thirteen million, one hundred sixty-five thousand, one hundred fifty-four".