11109898429 has 12 divisors (see below), whose sum is σ = 13683981564. Its totient is φ = 8962606464.

The previous prime is 11109898421. The next prime is 11109898447. The reversal of 11109898429 is 92489890111.

It can be written as a sum of positive squares in 2 ways, for example, as 3833467225 + 7276431204 = 61915^2 + 85302^2 .

It is not a de Polignac number, because 11109898429 - 2³ = 11109898421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109898421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6667774 + ... + 6669439.

It is an arithmetic number, because the mean of its divisors is an integer number (1140331797).

Almost surely, 2^11109898429 is an apocalyptic number.

It is an amenable number.

11109898429 is a deficient number, since it is larger than the sum of its proper divisors (2574083135).

11109898429 is a wasteful number, since it uses less digits than its factorization.

11109898429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13337244 (or 13337237 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 52.

The spelling of 11109898429 in words is "eleven billion, one hundred nine million, eight hundred ninety-eight thousand, four hundred twenty-nine".