123116413 has 4 divisors (see below), whose sum is σ = 140704480. Its totient is φ = 105528348.

The previous prime is 123116393. The next prime is 123116419. The reversal of 123116413 is 314611321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 314611321 = 137 ⋅2296433.

It is a cyclic number.

It is not a de Polignac number, because 123116413 - 2⁹ = 123115901 is a prime.

It is a super-2 number, since 2×123116413² = 30315302299973138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123116419) 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, 8794023 + ... + 8794036.

It is an arithmetic number, because the mean of its divisors is an integer number (35176120).

Almost surely, 2^123116413 is an apocalyptic number.

It is an amenable number.

123116413 is a deficient number, since it is larger than the sum of its proper divisors (17588067).

123116413 is an equidigital number, since it uses as much as digits as its factorization.

123116413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17588066.

The product of its digits is 432, while the sum is 22.

The square root of 123116413 is about 11095.7835685453. The cubic root of 123116413 is about 497.4758292340.

Adding to 123116413 its reverse (314611321), we get a palindrome (437727734).

The spelling of 123116413 in words is "one hundred twenty-three million, one hundred sixteen thousand, four hundred thirteen".