31013143223 has 2 divisors, whose sum is σ = 31013143224. Its totient is φ = 31013143222.

The previous prime is 31013143211. The next prime is 31013143237. The reversal of 31013143223 is 32234131013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31013143223 - 2⁶ = 31013143159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31013143423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15506571611 + 15506571612.

It is an arithmetic number, because the mean of its divisors is an integer number (15506571612).

Almost surely, 2^31013143223 is an apocalyptic number.

31013143223 is a deficient number, since it is larger than the sum of its proper divisors (1).

31013143223 is an equidigital number, since it uses as much as digits as its factorization.

31013143223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31013143223 its reverse (32234131013), we get a palindrome (63247274236).

The spelling of 31013143223 in words is "thirty-one billion, thirteen million, one hundred forty-three thousand, two hundred twenty-three".