1311083212 has 18 divisors (see below), whose sum is σ = 2326294068. Its totient is φ = 646551072.

The previous prime is 1311083171. The next prime is 1311083227. The reversal of 1311083212 is 2123801131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9438 + ... + 52069.

Almost surely, 2^1311083212 is an apocalyptic number.

It is an amenable number.

1311083212 is a deficient number, since it is larger than the sum of its proper divisors (1015210856).

1311083212 is an equidigital number, since it uses as much as digits as its factorization.

1311083212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61657 (or 61582 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1311083212 is about 36208.8830537480. The cubic root of 1311083212 is about 1094.4856843925.

Adding to 1311083212 its reverse (2123801131), we get a palindrome (3434884343).

The spelling of 1311083212 in words is "one billion, three hundred eleven million, eighty-three thousand, two hundred twelve".