1320340100 has 18 divisors (see below), whose sum is σ = 2865138234. Its totient is φ = 528136000.

The previous prime is 1320340019. The next prime is 1320340117. The reversal of 1320340100 is 10430231.

It can be written as a sum of positive squares in 3 ways, for example, as 173027716 + 1147312384 = 13154^2 + 33872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6601601 + ... + 6601800.

Almost surely, 2^1320340100 is an apocalyptic number.

1320340100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320340100 is an abundant number, since it is smaller than the sum of its proper divisors (1544798134).

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

1320340100 is a wasteful number, since it uses less digits than its factorization.

1320340100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13203415 (or 13203408 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1320340100 is about 36336.4844199325. The cubic root of 1320340100 is about 1097.0555136444.

Adding to 1320340100 its reverse (10430231), we get a palindrome (1330770331).

The spelling of 1320340100 in words is "one billion, three hundred twenty million, three hundred forty thousand, one hundred".