113220362257 has 2 divisors, whose sum is σ = 113220362258. Its totient is φ = 113220362256.

The previous prime is 113220362239. The next prime is 113220362279. The reversal of 113220362257 is 752263022311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113083565841 + 136796416 = 336279^2 + 11696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113220362257 is a prime.

It is not a weakly prime, because it can be changed into another prime (113220362207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610181128 + 56610181129.

It is an arithmetic number, because the mean of its divisors is an integer number (56610181129).

Almost surely, 2^113220362257 is an apocalyptic number.

It is an amenable number.

113220362257 is a deficient number, since it is larger than the sum of its proper divisors (1).

113220362257 is an equidigital number, since it uses as much as digits as its factorization.

113220362257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 113220362257 its reverse (752263022311), we get a palindrome (865483384568).

The spelling of 113220362257 in words is "one hundred thirteen billion, two hundred twenty million, three hundred sixty-two thousand, two hundred fifty-seven".