123011313 has 4 divisors (see below), whose sum is σ = 164015088. Its totient is φ = 82007540.

The previous prime is 123011309. The next prime is 123011321. The reversal of 123011313 is 313110321.

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.

It is a cyclic number.

It is not a de Polignac number, because 123011313 - 2² = 123011309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123011292 and 123011301.

It is not an unprimeable number, because it can be changed into a prime (123011333) 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, 20501883 + ... + 20501888.

It is an arithmetic number, because the mean of its divisors is an integer number (41003772).

Almost surely, 2^123011313 is an apocalyptic number.

It is an amenable number.

123011313 is a deficient number, since it is larger than the sum of its proper divisors (41003775).

123011313 is an equidigital number, since it uses as much as digits as its factorization.

123011313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41003774.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 123011313 is about 11091.0465241112. The cubic root of 123011313 is about 497.3342299317.

Adding to 123011313 its reverse (313110321), we get a palindrome (436121634).

The spelling of 123011313 in words is "one hundred twenty-three million, eleven thousand, three hundred thirteen".