11131899398 has 16 divisors (see below), whose sum is σ = 18340888320. Its totient is φ = 5043743496.

The previous prime is 11131899367. The next prime is 11131899437. The reversal of 11131899398 is 89399813111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6367490 + ... + 6369237.

It is an arithmetic number, because the mean of its divisors is an integer number (1146305520).

Almost surely, 2^11131899398 is an apocalyptic number.

11131899398 is a deficient number, since it is larger than the sum of its proper divisors (7208988922).

11131899398 is a wasteful number, since it uses less digits than its factorization.

11131899398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736771.

The product of its digits is 419904, while the sum is 53.

The spelling of 11131899398 in words is "eleven billion, one hundred thirty-one million, eight hundred ninety-nine thousand, three hundred ninety-eight".