31242254063 has 2 divisors, whose sum is σ = 31242254064. Its totient is φ = 31242254062.

The previous prime is 31242254009. The next prime is 31242254089. The reversal of 31242254063 is 36045224213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31242254063 - 2⁸ = 31242253807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31242254003) 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 as a sum of consecutive naturals, namely, 15621127031 + 15621127032.

It is an arithmetic number, because the mean of its divisors is an integer number (15621127032).

Almost surely, 2^31242254063 is an apocalyptic number.

31242254063 is a deficient number, since it is larger than the sum of its proper divisors (1).

31242254063 is an equidigital number, since it uses as much as digits as its factorization.

31242254063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 31242254063 its reverse (36045224213), we get a palindrome (67287478276).

The spelling of 31242254063 in words is "thirty-one billion, two hundred forty-two million, two hundred fifty-four thousand, sixty-three".