11557711043 has 2 divisors, whose sum is σ = 11557711044. Its totient is φ = 11557711042.

The previous prime is 11557710977. The next prime is 11557711049. The reversal of 11557711043 is 34011775511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11557711043 - 2²² = 11553516739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11557710994 and 11557711012.

It is not a weakly prime, because it can be changed into another prime (11557711049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778855521 + 5778855522.

It is an arithmetic number, because the mean of its divisors is an integer number (5778855522).

Almost surely, 2^11557711043 is an apocalyptic number.

11557711043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11557711043 is an equidigital number, since it uses as much as digits as its factorization.

11557711043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 35.

The spelling of 11557711043 in words is "eleven billion, five hundred fifty-seven million, seven hundred eleven thousand, forty-three".