31422001447 has 2 divisors, whose sum is σ = 31422001448. Its totient is φ = 31422001446.

The previous prime is 31422001441. The next prime is 31422001463. The reversal of 31422001447 is 74410022413.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31422001447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31422001441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15711000723 + 15711000724.

It is an arithmetic number, because the mean of its divisors is an integer number (15711000724).

Almost surely, 2^31422001447 is an apocalyptic number.

31422001447 is a deficient number, since it is larger than the sum of its proper divisors (1).

31422001447 is an equidigital number, since it uses as much as digits as its factorization.

31422001447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The spelling of 31422001447 in words is "thirty-one billion, four hundred twenty-two million, one thousand, four hundred forty-seven".