123200113 has 4 divisors (see below), whose sum is σ = 125821440. Its totient is φ = 120578788.

The previous prime is 123200059. The next prime is 123200131. The reversal of 123200113 is 311002321.

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: 311002321 = 7 ⋅44428903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123200113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123200093 and 123200102.

It is not an unprimeable number, because it can be changed into a prime (123200813) 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, 1310593 + ... + 1310686.

It is an arithmetic number, because the mean of its divisors is an integer number (31455360).

Almost surely, 2^123200113 is an apocalyptic number.

It is an amenable number.

123200113 is a deficient number, since it is larger than the sum of its proper divisors (2621327).

123200113 is an equidigital number, since it uses as much as digits as its factorization.

123200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621326.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123200113 is about 11099.5546307048. The cubic root of 123200113 is about 497.5885390764.

Adding to 123200113 its reverse (311002321), we get a palindrome (434202434).

The spelling of 123200113 in words is "one hundred twenty-three million, two hundred thousand, one hundred thirteen".