1311204034 has 12 divisors (see below), whose sum is σ = 2287917414. Its totient is φ = 561944544.

The previous prime is 1311204029. The next prime is 1311204071. The reversal of 1311204034 is 4304021131.

It can be written as a sum of positive squares in only one way, i.e., 1046328409 + 264875625 = 32347^2 + 16275^2 .

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, 6689719 + ... + 6689914.

Almost surely, 2^1311204034 is an apocalyptic number.

1311204034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1311204034 is a deficient number, since it is larger than the sum of its proper divisors (976713380).

1311204034 is a wasteful number, since it uses less digits than its factorization.

1311204034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13379649 (or 13379642 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1311204034 is about 36210.5514180605. The cubic root of 1311204034 is about 1094.5193038928.

Adding to 1311204034 its reverse (4304021131), we get a palindrome (5615225165).

The spelling of 1311204034 in words is "one billion, three hundred eleven million, two hundred four thousand, thirty-four".