31272071422 has 16 divisors (see below), whose sum is σ = 46976791680. Its totient is φ = 15613160472.

The previous prime is 31272071401. The next prime is 31272071423. The reversal of 31272071422 is 22417027213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31272071423) 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, 4620613 + ... + 4627375.

It is an arithmetic number, because the mean of its divisors is an integer number (2936049480).

Almost surely, 2^31272071422 is an apocalyptic number.

31272071422 is a deficient number, since it is larger than the sum of its proper divisors (15704720258).

31272071422 is a wasteful number, since it uses less digits than its factorization.

31272071422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807.

The product of its (nonzero) digits is 9408, while the sum is 31.

Adding to 31272071422 its reverse (22417027213), we get a palindrome (53689098635).

The spelling of 31272071422 in words is "thirty-one billion, two hundred seventy-two million, seventy-one thousand, four hundred twenty-two".