31422450413 has 2 divisors, whose sum is σ = 31422450414. Its totient is φ = 31422450412.

The previous prime is 31422450391. The next prime is 31422450457. The reversal of 31422450413 is 31405422413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24632360809 + 6790089604 = 156947^2 + 82402^2 .

It is a cyclic number.

It is not a de Polignac number, because 31422450413 - 2¹² = 31422446317 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31422450473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711225206 + 15711225207.

It is an arithmetic number, because the mean of its divisors is an integer number (15711225207).

Almost surely, 2^31422450413 is an apocalyptic number.

It is an amenable number.

31422450413 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422450413 is an equidigital number, since it uses as much as digits as its factorization.

31422450413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 31422450413 its reverse (31405422413), we get a palindrome (62827872826).

The spelling of 31422450413 in words is "thirty-one billion, four hundred twenty-two million, four hundred fifty thousand, four hundred thirteen".