31504222063 has 2 divisors, whose sum is σ = 31504222064. Its totient is φ = 31504222062.

The previous prime is 31504221979. The next prime is 31504222067. The reversal of 31504222063 is 36022240513.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31504222063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31504222067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15752111031 + 15752111032.

It is an arithmetic number, because the mean of its divisors is an integer number (15752111032).

Almost surely, 2^31504222063 is an apocalyptic number.

31504222063 is a deficient number, since it is larger than the sum of its proper divisors (1).

31504222063 is an equidigital number, since it uses as much as digits as its factorization.

31504222063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 31504222063 its reverse (36022240513), we get a palindrome (67526462576).

The spelling of 31504222063 in words is "thirty-one billion, five hundred four million, two hundred twenty-two thousand, sixty-three".