12431122 has 16 divisors (see below), whose sum is σ = 20398752. Its totient is φ = 5634720.

The previous prime is 12431117. The next prime is 12431143. The reversal of 12431122 is 22113421.

It is a junction number, because it is equal to n+sod(n) for n = 12431096 and 12431105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11518 + ... + 12550.

It is an arithmetic number, because the mean of its divisors is an integer number (1274922).

Almost surely, 2^12431122 is an apocalyptic number.

12431122 is a deficient number, since it is larger than the sum of its proper divisors (7967630).

12431122 is a wasteful number, since it uses less digits than its factorization.

12431122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593.

The product of its digits is 96, while the sum is 16.

The square root of 12431122 is about 3525.7796300960. The cubic root of 12431122 is about 231.6523851820.

Adding to 12431122 its reverse (22113421), we get a palindrome (34544543).

It can be divided in two parts, 12 and 431122, that added together give a palindrome (431134).

The spelling of 12431122 in words is "twelve million, four hundred thirty-one thousand, one hundred twenty-two".