1311332434 has 32 divisors (see below), whose sum is σ = 2117560320. Its totient is φ = 606822912.

The previous prime is 1311332381. The next prime is 1311332453. The reversal of 1311332434 is 4342331131.

It is a junction number, because it is equal to n+sod(n) for n = 1311332399 and 1311332408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188327 + ... + 1189429.

It is an arithmetic number, because the mean of its divisors is an integer number (66173760).

Almost surely, 2^1311332434 is an apocalyptic number.

1311332434 is a deficient number, since it is larger than the sum of its proper divisors (806227886).

1311332434 is a wasteful number, since it uses less digits than its factorization.

1311332434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its digits is 2592, while the sum is 25.

The square root of 1311332434 is about 36212.3243385453. The cubic root of 1311332434 is about 1094.5550297569. Note that the first 3 decimals are identical.

Adding to 1311332434 its reverse (4342331131), we get a palindrome (5653663565).

The spelling of 1311332434 in words is "one billion, three hundred eleven million, three hundred thirty-two thousand, four hundred thirty-four".