1331311834 has 8 divisors (see below), whose sum is σ = 2008001268. Its totient is φ = 661978080.

The previous prime is 1331311799. The next prime is 1331311847. The reversal of 1331311834 is 4381131331.

It can be written as a sum of positive squares in 2 ways, for example, as 1325324025 + 5987809 = 36405^2 + 2447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1838467 + ... + 1839190.

Almost surely, 2^1331311834 is an apocalyptic number.

1331311834 is a deficient number, since it is larger than the sum of its proper divisors (676689434).

1331311834 is a wasteful number, since it uses less digits than its factorization.

1331311834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677840.

The product of its digits is 2592, while the sum is 28.

The square root of 1331311834 is about 36487.1461476504. The cubic root of 1331311834 is about 1100.0858979753.

The spelling of 1331311834 in words is "one billion, three hundred thirty-one million, three hundred eleven thousand, eight hundred thirty-four".