113871721862357 has 2 divisors, whose sum is σ = 113871721862358. Its totient is φ = 113871721862356.

The previous prime is 113871721862341. The next prime is 113871721862383. The reversal of 113871721862357 is 753268127178311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113738087017636 + 133634844721 = 10664806^2 + 365561^2 .

It is a cyclic number.

It is not a de Polignac number, because 113871721862357 - 2⁴ = 113871721862341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113871721862357.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113871721864357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56935860931178 + 56935860931179.

It is an arithmetic number, because the mean of its divisors is an integer number (56935860931179).

Almost surely, 2^{113871721862357} is an apocalyptic number.

It is an amenable number.

113871721862357 is a deficient number, since it is larger than the sum of its proper divisors (1).

113871721862357 is an equidigital number, since it uses as much as digits as its factorization.

113871721862357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 62.

The spelling of 113871721862357 in words is "one hundred thirteen trillion, eight hundred seventy-one billion, seven hundred twenty-one million, eight hundred sixty-two thousand, three hundred fifty-seven".