11011002557 has 2 divisors, whose sum is σ = 11011002558. Its totient is φ = 11011002556.

The previous prime is 11011002521. The next prime is 11011002593. The reversal of 11011002557 is 75520011011.

It is a balanced prime because it is at equal distance from previous prime (11011002521) and next prime (11011002593).

It can be written as a sum of positive squares in only one way, i.e., 9795852676 + 1215149881 = 98974^2 + 34859^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011002557 - 2¹⁸ = 11010740413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011082557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505501278 + 5505501279.

It is an arithmetic number, because the mean of its divisors is an integer number (5505501279).

Almost surely, 2^11011002557 is an apocalyptic number.

It is an amenable number.

11011002557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011002557 is an equidigital number, since it uses as much as digits as its factorization.

11011002557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 350, while the sum is 23.

Adding to 11011002557 its reverse (75520011011), we get a palindrome (86531013568).

The spelling of 11011002557 in words is "eleven billion, eleven million, two thousand, five hundred fifty-seven".