31422211131 has 16 divisors (see below), whose sum is σ = 42409833984. Its totient is φ = 20691469344.

The previous prime is 31422211087. The next prime is 31422211157. The reversal of 31422211131 is 13111222413.

It is not a de Polignac number, because 31422211131 - 2⁷ = 31422211003 is a prime.

It is a super-2 number, since 2×31422211131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31422211098 and 31422211107.

It is not an unprimeable number, because it can be changed into a prime (31422211181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582990 + ... + 1602716.

It is an arithmetic number, because the mean of its divisors is an integer number (2650614624).

Almost surely, 2^31422211131 is an apocalyptic number.

31422211131 is a deficient number, since it is larger than the sum of its proper divisors (10987622853).

31422211131 is a wasteful number, since it uses less digits than its factorization.

31422211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26210.

The product of its digits is 288, while the sum is 21.

Adding to 31422211131 its reverse (13111222413), we get a palindrome (44533433544).

The spelling of 31422211131 in words is "thirty-one billion, four hundred twenty-two million, two hundred eleven thousand, one hundred thirty-one".