231123023311 has 2 divisors, whose sum is σ = 231123023312. Its totient is φ = 231123023310.

The previous prime is 231123023297. The next prime is 231123023317. The reversal of 231123023311 is 113320321132.

231123023311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231123023311 - 2¹³ = 231123015119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231123023317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115561511655 + 115561511656.

It is an arithmetic number, because the mean of its divisors is an integer number (115561511656).

Almost surely, 2^231123023311 is an apocalyptic number.

231123023311 is a deficient number, since it is larger than the sum of its proper divisors (1).

231123023311 is an equidigital number, since it uses as much as digits as its factorization.

231123023311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231123023311 its reverse (113320321132), we get a palindrome (344443344443).

The spelling of 231123023311 in words is "two hundred thirty-one billion, one hundred twenty-three million, twenty-three thousand, three hundred eleven".