123380011 has 4 divisors (see below), whose sum is σ = 123403000. Its totient is φ = 123357024.

The previous prime is 123379987. The next prime is 123380021. The reversal of 123380011 is 110083321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123380011 - 2⁵ = 123379979 is a prime.

It is a super-2 number, since 2×123380011² = 30445254228720242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123380021) 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, 1315 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (30850750).

Almost surely, 2^123380011 is an apocalyptic number.

123380011 is a deficient number, since it is larger than the sum of its proper divisors (22989).

123380011 is an equidigital number, since it uses as much as digits as its factorization.

123380011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22988.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 123380011 is about 11107.6555132035. The cubic root of 123380011 is about 497.8306158241.

The spelling of 123380011 in words is "one hundred twenty-three million, three hundred eighty thousand, eleven".