1321289332 has 12 divisors (see below), whose sum is σ = 2522461536. Its totient is φ = 600586040.

The previous prime is 1321289309. The next prime is 1321289353. The reversal of 1321289332 is 2339821231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15014608 + ... + 15014695.

It is an arithmetic number, because the mean of its divisors is an integer number (210205128).

Almost surely, 2^1321289332 is an apocalyptic number.

It is an amenable number.

1321289332 is a deficient number, since it is larger than the sum of its proper divisors (1201172204).

1321289332 is a wasteful number, since it uses less digits than its factorization.

1321289332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30029318 (or 30029316 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 1321289332 is about 36349.5437660502. The cubic root of 1321289332 is about 1097.3183526770.

The spelling of 1321289332 in words is "one billion, three hundred twenty-one million, two hundred eighty-nine thousand, three hundred thirty-two".