11731233117 has 16 divisors (see below), whose sum is σ = 16285832640. Its totient is φ = 7504982400.

The previous prime is 11731233109. The next prime is 11731233121. The reversal of 11731233117 is 71133213711.

It is not a de Polignac number, because 11731233117 - 2³ = 11731233109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11731273117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774267 + ... + 789272.

It is an arithmetic number, because the mean of its divisors is an integer number (1017864540).

Almost surely, 2^11731233117 is an apocalyptic number.

It is an amenable number.

11731233117 is a deficient number, since it is larger than the sum of its proper divisors (4554599523).

11731233117 is a wasteful number, since it uses less digits than its factorization.

11731233117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563644.

The product of its digits is 2646, while the sum is 30.

Adding to 11731233117 its reverse (71133213711), we get a palindrome (82864446828).

The spelling of 11731233117 in words is "eleven billion, seven hundred thirty-one million, two hundred thirty-three thousand, one hundred seventeen".