231345234733 has 2 divisors, whose sum is σ = 231345234734. Its totient is φ = 231345234732.

The previous prime is 231345234713. The next prime is 231345234749. The reversal of 231345234733 is 337432543132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130782043044 + 100563191689 = 361638^2 + 317117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231345234733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231345234713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115672617366 + 115672617367.

It is an arithmetic number, because the mean of its divisors is an integer number (115672617367).

Almost surely, 2^231345234733 is an apocalyptic number.

It is an amenable number.

231345234733 is a deficient number, since it is larger than the sum of its proper divisors (1).

231345234733 is an equidigital number, since it uses as much as digits as its factorization.

231345234733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 40.

Adding to 231345234733 its reverse (337432543132), we get a palindrome (568777777865).

The spelling of 231345234733 in words is "two hundred thirty-one billion, three hundred forty-five million, two hundred thirty-four thousand, seven hundred thirty-three".