11940834231 has 12 divisors (see below), whose sum is σ = 17804255040. Its totient is φ = 7703763840.

The previous prime is 11940834203. The next prime is 11940834251. The reversal of 11940834231 is 13243804911.

11940834231 is a `hidden beast` number, since 1 + 19 + 408 + 3 + 4 + 231 = 666.

It is not a de Polignac number, because 11940834231 - 2¹⁹ = 11940309943 is a prime.

It is a super-2 number, since 2×11940834231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11940834251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21399066 + ... + 21399623.

It is an arithmetic number, because the mean of its divisors is an integer number (1483687920).

Almost surely, 2^11940834231 is an apocalyptic number.

11940834231 is a deficient number, since it is larger than the sum of its proper divisors (5863420809).

11940834231 is a wasteful number, since it uses less digits than its factorization.

11940834231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42798726 (or 42798723 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 11940834231 in words is "eleven billion, nine hundred forty million, eight hundred thirty-four thousand, two hundred thirty-one".