11130957889 has 2 divisors, whose sum is σ = 11130957890. Its totient is φ = 11130957888.

The previous prime is 11130957809. The next prime is 11130957899. The reversal of 11130957889 is 98875903111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7323080625 + 3807877264 = 85575^2 + 61708^2 .

It is a cyclic number.

It is not a de Polignac number, because 11130957889 - 2⁹ = 11130957377 is a prime.

It is not a weakly prime, because it can be changed into another prime (11130957809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565478944 + 5565478945.

It is an arithmetic number, because the mean of its divisors is an integer number (5565478945).

Almost surely, 2^11130957889 is an apocalyptic number.

It is an amenable number.

11130957889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11130957889 is an equidigital number, since it uses as much as digits as its factorization.

11130957889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 52.

The spelling of 11130957889 in words is "eleven billion, one hundred thirty million, nine hundred fifty-seven thousand, eight hundred eighty-nine".