11231998 has 8 divisors (see below), whose sum is σ = 16921008. Its totient is φ = 5591664.

The previous prime is 11231993. The next prime is 11232017. The reversal of 11231998 is 89913211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11586 + ... + 12517.

It is an arithmetic number, because the mean of its divisors is an integer number (2115126).

Almost surely, 2^11231998 is an apocalyptic number.

11231998 is a deficient number, since it is larger than the sum of its proper divisors (5689010).

11231998 is a wasteful number, since it uses less digits than its factorization.

11231998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24338.

The product of its digits is 3888, while the sum is 34.

The square root of 11231998 is about 3351.4173121233. The cubic root of 11231998 is about 223.9506561166.

The spelling of 11231998 in words is "eleven million, two hundred thirty-one thousand, nine hundred ninety-eight".