1320711284 has 12 divisors (see below), whose sum is σ = 2315880000. Its totient is φ = 659031288.

The previous prime is 1320711281. The next prime is 1320711289. The reversal of 1320711284 is 4821170231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320711281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328844 + ... + 332835.

It is an arithmetic number, because the mean of its divisors is an integer number (192990000).

Almost surely, 2^1320711284 is an apocalyptic number.

It is an amenable number.

1320711284 is a deficient number, since it is larger than the sum of its proper divisors (995168716).

1320711284 is a wasteful number, since it uses less digits than its factorization.

1320711284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662182 (or 662180 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1320711284 is about 36341.5916547418. The cubic root of 1320711284 is about 1097.1583081947.

The spelling of 1320711284 in words is "one billion, three hundred twenty million, seven hundred eleven thousand, two hundred eighty-four".