231332213113 has 2 divisors, whose sum is σ = 231332213114. Its totient is φ = 231332213112.

The previous prime is 231332213071. The next prime is 231332213117. The reversal of 231332213113 is 311312233132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171340528489 + 59991684624 = 413933^2 + 244932^2 .

It is a cyclic number.

It is not a de Polignac number, because 231332213113 - 2³⁷ = 93893259641 is a prime.

It is a super-3 number, since 3×231332213113³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (231332213117) 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, 115666106556 + 115666106557.

It is an arithmetic number, because the mean of its divisors is an integer number (115666106557).

Almost surely, 2^231332213113 is an apocalyptic number.

It is an amenable number.

231332213113 is a deficient number, since it is larger than the sum of its proper divisors (1).

231332213113 is an equidigital number, since it uses as much as digits as its factorization.

231332213113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 25.

Adding to 231332213113 its reverse (311312233132), we get a palindrome (542644446245).

The spelling of 231332213113 in words is "two hundred thirty-one billion, three hundred thirty-two million, two hundred thirteen thousand, one hundred thirteen".