123102031313 has 16 divisors (see below), whose sum is σ = 130664448000. Its totient is φ = 115724803920.

The previous prime is 123102031309. The next prime is 123102031369. The reversal of 123102031313 is 313130201321.

It is a cyclic number.

It is not a de Polignac number, because 123102031313 - 2² = 123102031309 is a prime.

It is a super-2 number, since 2×123102031313² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123102034313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6910448 + ... + 6928238.

It is an arithmetic number, because the mean of its divisors is an integer number (8166528000).

Almost surely, 2^123102031313 is an apocalyptic number.

It is an amenable number.

123102031313 is a deficient number, since it is larger than the sum of its proper divisors (7562416687).

123102031313 is a wasteful number, since it uses less digits than its factorization.

123102031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22972.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123102031313 its reverse (313130201321), we get a palindrome (436232232634).

The spelling of 123102031313 in words is "one hundred twenty-three billion, one hundred two million, thirty-one thousand, three hundred thirteen".