31100123332313 has 6 divisors (see below), whose sum is σ = 36177694488666. Its totient is φ = 26657248570512.

The previous prime is 31100123332307. The next prime is 31100123332361. The reversal of 31100123332313 is 31323332100113.

It can be written as a sum of positive squares in only one way, i.e., 20097315898009 + 11002807434304 = 4483003^2 + 3317048^2 .

It is not a de Polignac number, because 31100123332313 - 2⁶ = 31100123332249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31100128332313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 317348197220 + ... + 317348197317.

It is an arithmetic number, because the mean of its divisors is an integer number (6029615748111).

Almost surely, 2^{31100123332313} is an apocalyptic number.

It is an amenable number.

31100123332313 is a deficient number, since it is larger than the sum of its proper divisors (5077571156353).

31100123332313 is an equidigital number, since it uses as much as digits as its factorization.

31100123332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634696394551 (or 634696394544 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31100123332313 its reverse (31323332100113), we get a palindrome (62423455432426).

The spelling of 31100123332313 in words is "thirty-one trillion, one hundred billion, one hundred twenty-three million, three hundred thirty-two thousand, three hundred thirteen".