1320315634 has 32 divisors (see below), whose sum is σ = 2211307776. Its totient is φ = 586091520.

The previous prime is 1320315631. The next prime is 1320315641. The reversal of 1320315634 is 4365130231.

It is not an unprimeable number, because it can be changed into a prime (1320315631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 595512 + ... + 597724.

It is an arithmetic number, because the mean of its divisors is an integer number (69103368).

Almost surely, 2^1320315634 is an apocalyptic number.

1320315634 is a deficient number, since it is larger than the sum of its proper divisors (890992142).

1320315634 is a wasteful number, since it uses less digits than its factorization.

1320315634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1320315634 is about 36336.1477594970. The cubic root of 1320315634 is about 1097.0487374292.

Adding to 1320315634 its reverse (4365130231), we get a palindrome (5685445865).

The spelling of 1320315634 in words is "one billion, three hundred twenty million, three hundred fifteen thousand, six hundred thirty-four".