11131299989 has 2 divisors, whose sum is σ = 11131299990. Its totient is φ = 11131299988.

The previous prime is 11131299979. The next prime is 11131300021. The reversal of 11131299989 is 98999213111.

11131299989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10744980964 + 386319025 = 103658^2 + 19655^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131299989 - 2⁸ = 11131299733 is a prime.

It is a super-2 number, since 2×11131299989² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11131299989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11131299979) 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, 5565649994 + 5565649995.

It is an arithmetic number, because the mean of its divisors is an integer number (5565649995).

Almost surely, 2^11131299989 is an apocalyptic number.

It is an amenable number.

11131299989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131299989 is an equidigital number, since it uses as much as digits as its factorization.

11131299989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 53.

The spelling of 11131299989 in words is "eleven billion, one hundred thirty-one million, two hundred ninety-nine thousand, nine hundred eighty-nine".