11123957194 has 32 divisors (see below), whose sum is σ = 19418507136. Its totient is φ = 4680486720.

The previous prime is 11123957183. The next prime is 11123957203. The reversal of 11123957194 is 49175932111.

It is a self number, because there is not a number n which added to its sum of digits gives 11123957194.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 455232 + ... + 479044.

It is an arithmetic number, because the mean of its divisors is an integer number (606828348).

Almost surely, 2^11123957194 is an apocalyptic number.

11123957194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11123957194 is a deficient number, since it is larger than the sum of its proper divisors (8294549942).

11123957194 is a wasteful number, since it uses less digits than its factorization.

11123957194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24430.

The product of its digits is 68040, while the sum is 43.

The spelling of 11123957194 in words is "eleven billion, one hundred twenty-three million, nine hundred fifty-seven thousand, one hundred ninety-four".