12123425115 has 40 divisors (see below), whose sum is σ = 21743444448. Its totient is φ = 6462529920.

The previous prime is 12123425107. The next prime is 12123425123. The reversal of 12123425115 is 51152432121.

It is a happy number.

12123425115 is a `hidden beast` number, since 1 + 2 + 123 + 425 + 115 = 666.

It is an interprime number because it is at equal distance from previous prime (12123425107) and next prime (12123425123).

It is not a de Polignac number, because 12123425115 - 2³ = 12123425107 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, 929479 + ... + 942431.

Almost surely, 2^12123425115 is an apocalyptic number.

12123425115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12123425115 is a deficient number, since it is larger than the sum of its proper divisors (9620019333).

12123425115 is a wasteful number, since it uses less digits than its factorization.

12123425115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15281 (or 15272 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

Adding to 12123425115 its reverse (51152432121), we get a palindrome (63275857236).

The spelling of 12123425115 in words is "twelve billion, one hundred twenty-three million, four hundred twenty-five thousand, one hundred fifteen".