123513369 has 24 divisors (see below), whose sum is σ = 192313440. Its totient is φ = 70305984.

The previous prime is 123513359. The next prime is 123513391. The reversal of 123513369 is 963315321.

It is not a de Polignac number, because 123513369 - 2⁸ = 123513113 is a prime.

It is a super-2 number, since 2×123513369² = 30511104643460322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123513359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40117 + ... + 43085.

It is an arithmetic number, because the mean of its divisors is an integer number (8013060).

Almost surely, 2^123513369 is an apocalyptic number.

It is an amenable number.

123513369 is a deficient number, since it is larger than the sum of its proper divisors (68800071).

123513369 is a wasteful number, since it uses less digits than its factorization.

123513369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269 (or 3262 counting only the distinct ones).

The product of its digits is 14580, while the sum is 33.

The square root of 123513369 is about 11113.6568689158. The cubic root of 123513369 is about 498.0099149653.

The spelling of 123513369 in words is "one hundred twenty-three million, five hundred thirteen thousand, three hundred sixty-nine".