12131001322 has 32 divisors (see below), whose sum is σ = 20060187840. Its totient is φ = 5456075520.

The previous prime is 12131001319. The next prime is 12131001329. The reversal of 12131001322 is 22310013121.

It is a super-2 number, since 2×12131001322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12131001296 and 12131001305.

It is not an unprimeable number, because it can be changed into a prime (12131001329) 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, 1594704 + ... + 1602292.

It is an arithmetic number, because the mean of its divisors is an integer number (626880870).

Almost surely, 2^12131001322 is an apocalyptic number.

12131001322 is a deficient number, since it is larger than the sum of its proper divisors (7929186518).

12131001322 is a wasteful number, since it uses less digits than its factorization.

12131001322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8358.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12131001322 its reverse (22310013121), we get a palindrome (34441014443).

The spelling of 12131001322 in words is "twelve billion, one hundred thirty-one million, one thousand, three hundred twenty-two".