11131901789 has 4 divisors (see below), whose sum is σ = 11147214624. Its totient is φ = 11116588956.

The previous prime is 11131901783. The next prime is 11131901819. The reversal of 11131901789 is 98710913111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11131901789 - 2³² = 6836934493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131901783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7655327 + ... + 7656780.

It is an arithmetic number, because the mean of its divisors is an integer number (2786803656).

Almost surely, 2^11131901789 is an apocalyptic number.

It is an amenable number.

11131901789 is a deficient number, since it is larger than the sum of its proper divisors (15312835).

11131901789 is an equidigital number, since it uses as much as digits as its factorization.

11131901789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15312834.

The product of its (nonzero) digits is 13608, while the sum is 41.

The spelling of 11131901789 in words is "eleven billion, one hundred thirty-one million, nine hundred one thousand, seven hundred eighty-nine".