11312113117 has 2 divisors, whose sum is σ = 11312113118. Its totient is φ = 11312113116.

The previous prime is 11312113091. The next prime is 11312113133. The reversal of 11312113117 is 71131121311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7982707716 + 3329405401 = 89346^2 + 57701^2 .

It is a cyclic number.

It is not a de Polignac number, because 11312113117 - 2³¹ = 9164629469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11312113147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656056558 + 5656056559.

It is an arithmetic number, because the mean of its divisors is an integer number (5656056559).

Almost surely, 2^11312113117 is an apocalyptic number.

It is an amenable number.

11312113117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312113117 is an equidigital number, since it uses as much as digits as its factorization.

11312113117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126, while the sum is 22.

Adding to 11312113117 its reverse (71131121311), we get a palindrome (82443234428).

The spelling of 11312113117 in words is "eleven billion, three hundred twelve million, one hundred thirteen thousand, one hundred seventeen".