11131312099 has 2 divisors, whose sum is σ = 11131312100. Its totient is φ = 11131312098.

The previous prime is 11131312091. The next prime is 11131312103. The reversal of 11131312099 is 99021313111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11131312099 - 2³ = 11131312091 is a prime.

It is a super-2 number, since 2×11131312099² (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 11131312099.

It is not a weakly prime, because it can be changed into another prime (11131312091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565656049 + 5565656050.

It is an arithmetic number, because the mean of its divisors is an integer number (5565656050).

Almost surely, 2^11131312099 is an apocalyptic number.

11131312099 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131312099 is an equidigital number, since it uses as much as digits as its factorization.

11131312099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 31.

The spelling of 11131312099 in words is "eleven billion, one hundred thirty-one million, three hundred twelve thousand, ninety-nine".