11233239997 has 32 divisors (see below), whose sum is σ = 13789440000. Its totient is φ = 8940621888.

The previous prime is 11233239961. The next prime is 11233240027. The reversal of 11233239997 is 79993233211.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11233239997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11233239997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233219997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2970654 + ... + 2974432.

It is an arithmetic number, because the mean of its divisors is an integer number (430920000).

Almost surely, 2^11233239997 is an apocalyptic number.

It is an amenable number.

11233239997 is a deficient number, since it is larger than the sum of its proper divisors (2556200003).

11233239997 is a wasteful number, since it uses less digits than its factorization.

11233239997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345.

The product of its digits is 551124, while the sum is 49.

The spelling of 11233239997 in words is "eleven billion, two hundred thirty-three million, two hundred thirty-nine thousand, nine hundred ninety-seven".