231244434233 has 2 divisors, whose sum is σ = 231244434234. Its totient is φ = 231244434232.

The previous prime is 231244434229. The next prime is 231244434301. The reversal of 231244434233 is 332434442132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222683003449 + 8561430784 = 471893^2 + 92528^2 .

It is a cyclic number.

It is not a de Polignac number, because 231244434233 - 2² = 231244434229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231244434193 and 231244434202.

It is not a weakly prime, because it can be changed into another prime (231244434133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115622217116 + 115622217117.

It is an arithmetic number, because the mean of its divisors is an integer number (115622217117).

Almost surely, 2^231244434233 is an apocalyptic number.

It is an amenable number.

231244434233 is a deficient number, since it is larger than the sum of its proper divisors (1).

231244434233 is an equidigital number, since it uses as much as digits as its factorization.

231244434233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 35.

Adding to 231244434233 its reverse (332434442132), we get a palindrome (563678876365).

The spelling of 231244434233 in words is "two hundred thirty-one billion, two hundred forty-four million, four hundred thirty-four thousand, two hundred thirty-three".