111041257 has 2 divisors, whose sum is σ = 111041258. Its totient is φ = 111041256.

The previous prime is 111041237. The next prime is 111041269. The reversal of 111041257 is 752140111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110439081 + 602176 = 10509^2 + 776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111041257 is a prime.

It is a super-2 number, since 2×111041257² = 24660321512280098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111041237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55520628 + 55520629.

It is an arithmetic number, because the mean of its divisors is an integer number (55520629).

Almost surely, 2^111041257 is an apocalyptic number.

It is an amenable number.

111041257 is a deficient number, since it is larger than the sum of its proper divisors (1).

111041257 is an equidigital number, since it uses as much as digits as its factorization.

111041257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 111041257 is about 10537.6115415212. The cubic root of 111041257 is about 480.6490885872.

Adding to 111041257 its reverse (752140111), we get a palindrome (863181368).

The spelling of 111041257 in words is "one hundred eleven million, forty-one thousand, two hundred fifty-seven".