31422001442 has 16 divisors (see below), whose sum is σ = 53744419512. Its totient is φ = 13649376000.

The previous prime is 31422001441. The next prime is 31422001447. The reversal of 31422001442 is 24410022413.

It can be written as a sum of positive squares in 4 ways, for example, as 31202042881 + 219958561 = 176641^2 + 14831^2 .

It is not an unprimeable number, because it can be changed into a prime (31422001441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35544809 + ... + 35545692.

Almost surely, 2^31422001442 is an apocalyptic number.

31422001442 is a deficient number, since it is larger than the sum of its proper divisors (22322418070).

31422001442 is a wasteful number, since it uses less digits than its factorization.

31422001442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71090533.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31422001442 its reverse (24410022413), we get a palindrome (55832023855).

The spelling of 31422001442 in words is "thirty-one billion, four hundred twenty-two million, one thousand, four hundred forty-two".