1321116632 has 32 divisors (see below), whose sum is σ = 2703730320. Its totient is φ = 600186240.

The previous prime is 1321116583. The next prime is 1321116661. The reversal of 1321116632 is 2366111231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257678 + ... + 262754.

Almost surely, 2^1321116632 is an apocalyptic number.

It is an amenable number.

1321116632 is an abundant number, since it is smaller than the sum of its proper divisors (1382613688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321116632 is a wasteful number, since it uses less digits than its factorization.

1321116632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8051 (or 8047 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 1321116632 is about 36347.1681427866. The cubic root of 1321116632 is about 1097.2705420191.

Adding to 1321116632 its reverse (2366111231), we get a palindrome (3687227863).

The spelling of 1321116632 in words is "one billion, three hundred twenty-one million, one hundred sixteen thousand, six hundred thirty-two".