31232031231263 has 2 divisors, whose sum is σ = 31232031231264. Its totient is φ = 31232031231262.

The previous prime is 31232031231251. The next prime is 31232031231319. The reversal of 31232031231263 is 36213213023213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31232031231263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31232031234263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616015615631 + 15616015615632.

It is an arithmetic number, because the mean of its divisors is an integer number (15616015615632).

Almost surely, 2^{31232031231263} is an apocalyptic number.

31232031231263 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232031231263 is an equidigital number, since it uses as much as digits as its factorization.

31232031231263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 31232031231263 its reverse (36213213023213), we get a palindrome (67445244254476).

The spelling of 31232031231263 in words is "thirty-one trillion, two hundred thirty-two billion, thirty-one million, two hundred thirty-one thousand, two hundred sixty-three".