11112131299 has 4 divisors (see below), whose sum is σ = 11131062264. Its totient is φ = 11093200336.

The previous prime is 11112131293. The next prime is 11112131309. The reversal of 11112131299 is 99213121111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11112131299 - 2³ = 11112131291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112131299.

It is not an unprimeable number, because it can be changed into a prime (11112131291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9464602 + ... + 9465775.

It is an arithmetic number, because the mean of its divisors is an integer number (2782765566).

Almost surely, 2^11112131299 is an apocalyptic number.

11112131299 is a deficient number, since it is larger than the sum of its proper divisors (18930965).

11112131299 is an equidigital number, since it uses as much as digits as its factorization.

11112131299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930964.

The product of its digits is 972, while the sum is 31.

The spelling of 11112131299 in words is "eleven billion, one hundred twelve million, one hundred thirty-one thousand, two hundred ninety-nine".