113279199857 has 2 divisors, whose sum is σ = 113279199858. Its totient is φ = 113279199856.

The previous prime is 113279199851. The next prime is 113279199893. The reversal of 113279199857 is 758991972311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93122015281 + 20157184576 = 305159^2 + 141976^2 .

It is a cyclic number.

It is not a de Polignac number, because 113279199857 - 2¹⁰ = 113279198833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113279199857.

It is not a weakly prime, because it can be changed into another prime (113279199851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56639599928 + 56639599929.

It is an arithmetic number, because the mean of its divisors is an integer number (56639599929).

Almost surely, 2^113279199857 is an apocalyptic number.

It is an amenable number.

113279199857 is a deficient number, since it is larger than the sum of its proper divisors (1).

113279199857 is an equidigital number, since it uses as much as digits as its factorization.

113279199857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 62.

The spelling of 113279199857 in words is "one hundred thirteen billion, two hundred seventy-nine million, one hundred ninety-nine thousand, eight hundred fifty-seven".