4231040110991 has 2 divisors, whose sum is σ = 4231040110992. Its totient is φ = 4231040110990.

The previous prime is 4231040110981. The next prime is 4231040111041. The reversal of 4231040110991 is 1990110401324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4231040110991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4231040110981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115520055495 + 2115520055496.

It is an arithmetic number, because the mean of its divisors is an integer number (2115520055496).

Almost surely, 2^{4231040110991} is an apocalyptic number.

4231040110991 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231040110991 is an equidigital number, since it uses as much as digits as its factorization.

4231040110991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 4231040110991 in words is "four trillion, two hundred thirty-one billion, forty million, one hundred ten thousand, nine hundred ninety-one".