1118244144257 has 2 divisors, whose sum is σ = 1118244144258. Its totient is φ = 1118244144256.

The previous prime is 1118244144211. The next prime is 1118244144263. The reversal of 1118244144257 is 7524414428111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 718410503281 + 399833640976 = 847591^2 + 632324^2 .

It is a cyclic number.

It is not a de Polignac number, because 1118244144257 - 2²⁰ = 1118243095681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1118243144257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559122072128 + 559122072129.

It is an arithmetic number, because the mean of its divisors is an integer number (559122072129).

Almost surely, 2^{1118244144257} is an apocalyptic number.

It is an amenable number.

1118244144257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118244144257 is an equidigital number, since it uses as much as digits as its factorization.

1118244144257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 286720, while the sum is 44.

The spelling of 1118244144257 in words is "one trillion, one hundred eighteen billion, two hundred forty-four million, one hundred forty-four thousand, two hundred fifty-seven".