1111355057 has 2 divisors, whose sum is σ = 1111355058. Its totient is φ = 1111355056.

The previous prime is 1111355033. The next prime is 1111355111. The reversal of 1111355057 is 7505531111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022976256 + 88378801 = 31984^2 + 9401^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111355057 - 2¹⁴ = 1111338673 is a prime.

It is a super-2 number, since 2×1111355057² = 2470220125438946498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1111355857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555677528 + 555677529.

It is an arithmetic number, because the mean of its divisors is an integer number (555677529).

Almost surely, 2^1111355057 is an apocalyptic number.

It is an amenable number.

1111355057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111355057 is an equidigital number, since it uses as much as digits as its factorization.

1111355057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2625, while the sum is 29.

The square root of 1111355057 is about 33336.9923208438. The cubic root of 1111355057 is about 1035.8199627642.

Adding to 1111355057 its reverse (7505531111), we get a palindrome (8616886168).

The spelling of 1111355057 in words is "one billion, one hundred eleven million, three hundred fifty-five thousand, fifty-seven".