123001111313 has 4 divisors (see below), whose sum is σ = 130236470820. Its totient is φ = 115765751808.

The previous prime is 123001111309. The next prime is 123001111391. The reversal of 123001111313 is 313111100321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68815979584 + 54185131729 = 262328^2 + 232777^2 .

It is a cyclic number.

It is not a de Polignac number, because 123001111313 - 2² = 123001111309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7235359489 = 123001111313 / (1 + 2 + 3 + 0 + 0 + 1 + 1 + 1 + 1 + 3 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123001111291 and 123001111300.

It is not an unprimeable number, because it can be changed into a prime (123001111393) 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, 3617679728 + ... + 3617679761.

It is an arithmetic number, because the mean of its divisors is an integer number (32559117705).

Almost surely, 2^123001111313 is an apocalyptic number.

It is an amenable number.

123001111313 is a deficient number, since it is larger than the sum of its proper divisors (7235359507).

123001111313 is an equidigital number, since it uses as much as digits as its factorization.

123001111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7235359506.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 123001111313 its reverse (313111100321), we get a palindrome (436112211634).

The spelling of 123001111313 in words is "one hundred twenty-three billion, one million, one hundred eleven thousand, three hundred thirteen".