233243221313431 has 16 divisors (see below), whose sum is σ = 272321156136960. Its totient is φ = 195607339741440.

The previous prime is 233243221313423. The next prime is 233243221313477. The reversal of 233243221313431 is 134313122342332.

It is a cyclic number.

It is not a de Polignac number, because 233243221313431 - 2³ = 233243221313423 is a prime.

It is a super-2 number, since 2×233243221313431² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233243221313491) 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 in 15 ways as a sum of consecutive naturals, for example, 110813815 + ... + 112899016.

It is an arithmetic number, because the mean of its divisors is an integer number (17020072258560).

Almost surely, 2^{233243221313431} is an apocalyptic number.

233243221313431 is a deficient number, since it is larger than the sum of its proper divisors (39077934823529).

233243221313431 is a wasteful number, since it uses less digits than its factorization.

233243221313431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223716054.

The product of its digits is 186624, while the sum is 37.

Adding to 233243221313431 its reverse (134313122342332), we get a palindrome (367556343655763).

The spelling of 233243221313431 in words is "two hundred thirty-three trillion, two hundred forty-three billion, two hundred twenty-one million, three hundred thirteen thousand, four hundred thirty-one".