123101031313 has 32 divisors (see below), whose sum is σ = 136469684736. Its totient is φ = 110330615808.

The previous prime is 123101031307. The next prime is 123101031349. The reversal of 123101031313 is 313130101321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123101031313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123101031373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94911481 + ... + 94912777.

It is an arithmetic number, because the mean of its divisors is an integer number (4264677648).

Almost surely, 2^123101031313 is an apocalyptic number.

123101031313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123101031313 is a deficient number, since it is larger than the sum of its proper divisors (13368653423).

123101031313 is a wasteful number, since it uses less digits than its factorization.

123101031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 123101031313 its reverse (313130101321), we get a palindrome (436231132634).

The spelling of 123101031313 in words is "one hundred twenty-three billion, one hundred one million, thirty-one thousand, three hundred thirteen".