11121123198 has 16 divisors (see below), whose sum is σ = 22555518336. Its totient is φ = 3654829080.

The previous prime is 11121123197. The next prime is 11121123227. The reversal of 11121123198 is 89132112111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121123193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13052536 + ... + 13053387.

It is an arithmetic number, because the mean of its divisors is an integer number (1409719896).

Almost surely, 2^11121123198 is an apocalyptic number.

11121123198 is an abundant number, since it is smaller than the sum of its proper divisors (11434395138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121123198 is a wasteful number, since it uses less digits than its factorization.

11121123198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26105999.

The product of its digits is 864, while the sum is 30.

The spelling of 11121123198 in words is "eleven billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred ninety-eight".