1322011131 has 12 divisors (see below), whose sum is σ = 2050466472. Its totient is φ = 755434848.

The previous prime is 1322011129. The next prime is 1322011133. The reversal of 1322011131 is 1311102231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1322011129) and next prime (1322011133).

It is not a de Polignac number, because 1322011131 - 2¹ = 1322011129 is a prime.

It is a super-2 number, since 2×1322011131² = 3495426860975798322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322011131.

It is not an unprimeable number, because it can be changed into a prime (1322011133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4496490 + ... + 4496783.

It is an arithmetic number, because the mean of its divisors is an integer number (170872206).

Almost surely, 2^1322011131 is an apocalyptic number.

1322011131 is a deficient number, since it is larger than the sum of its proper divisors (728455341).

1322011131 is an equidigital number, since it uses as much as digits as its factorization.

1322011131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993290 (or 8993283 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1322011131 is about 36359.4709945016. The cubic root of 1322011131 is about 1097.5181320610.

Adding to 1322011131 its reverse (1311102231), we get a palindrome (2633113362).

The spelling of 1322011131 in words is "one billion, three hundred twenty-two million, eleven thousand, one hundred thirty-one".