1321110700 has 72 divisors (see below), whose sum is σ = 3528406112. Its totient is φ = 418106880.

The previous prime is 1321110691. The next prime is 1321110719. The reversal of 1321110700 is 70111231.

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 23 ways as a sum of consecutive naturals, for example, 63489 + ... + 81688.

Almost surely, 2^1321110700 is an apocalyptic number.

1321110700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321110700 is an abundant number, since it is smaller than the sum of its proper divisors (2207295412).

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

1321110700 is a wasteful number, since it uses less digits than its factorization.

1321110700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145211 (or 145204 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 1321110700 is about 36347.0865407394. The cubic root of 1321110700 is about 1097.2688997168.

Adding to 1321110700 its reverse (70111231), we get a palindrome (1391221931).

The spelling of 1321110700 in words is "one billion, three hundred twenty-one million, one hundred ten thousand, seven hundred".