231011300111 has 2 divisors, whose sum is σ = 231011300112. Its totient is φ = 231011300110.

The previous prime is 231011300081. The next prime is 231011300147. The reversal of 231011300111 is 111003110132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231011300111 - 2³⁰ = 229937558287 is a prime.

It is a super-2 number, since 2×231011300111² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231011300911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115505650055 + 115505650056.

It is an arithmetic number, because the mean of its divisors is an integer number (115505650056).

Almost surely, 2^231011300111 is an apocalyptic number.

231011300111 is a deficient number, since it is larger than the sum of its proper divisors (1).

231011300111 is an equidigital number, since it uses as much as digits as its factorization.

231011300111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 231011300111 its reverse (111003110132), we get a palindrome (342014410243).

The spelling of 231011300111 in words is "two hundred thirty-one billion, eleven million, three hundred thousand, one hundred eleven".