231330311029 has 2 divisors, whose sum is σ = 231330311030. Its totient is φ = 231330311028.

The previous prime is 231330310993. The next prime is 231330311063. The reversal of 231330311029 is 920113033132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221643224100 + 9687086929 = 470790^2 + 98423^2 .

It is a cyclic number.

It is not a de Polignac number, because 231330311029 - 2¹⁷ = 231330179957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231330310988 and 231330311006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231330311629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665155514 + 115665155515.

It is an arithmetic number, because the mean of its divisors is an integer number (115665155515).

Almost surely, 2^231330311029 is an apocalyptic number.

It is an amenable number.

231330311029 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330311029 is an equidigital number, since it uses as much as digits as its factorization.

231330311029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 231330311029 in words is "two hundred thirty-one billion, three hundred thirty million, three hundred eleven thousand, twenty-nine".