31242133402223 has 2 divisors, whose sum is σ = 31242133402224. Its totient is φ = 31242133402222.

The previous prime is 31242133402213. The next prime is 31242133402229. The reversal of 31242133402223 is 32220433124213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31242133402223 - 2⁶ = 31242133402159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31242133402223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31242133402229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15621066701111 + 15621066701112.

It is an arithmetic number, because the mean of its divisors is an integer number (15621066701112).

Almost surely, 2^{31242133402223} is an apocalyptic number.

31242133402223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242133402223 is an equidigital number, since it uses as much as digits as its factorization.

31242133402223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 31242133402223 its reverse (32220433124213), we get a palindrome (63462566526436).

The spelling of 31242133402223 in words is "thirty-one trillion, two hundred forty-two billion, one hundred thirty-three million, four hundred two thousand, two hundred twenty-three".