1320010100 has 18 divisors (see below), whose sum is σ = 2864422134. Its totient is φ = 528004000.

The previous prime is 1320010093. The next prime is 1320010121. The reversal of 1320010100 is 10100231.

It can be written as a sum of positive squares in 3 ways, for example, as 4787344 + 1315222756 = 2188^2 + 36266^2 .

It is a congruent number.

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, 6599951 + ... + 6600150.

It is an arithmetic number, because the mean of its divisors is an integer number (159134563).

Almost surely, 2^1320010100 is an apocalyptic number.

1320010100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320010100 is an abundant number, since it is smaller than the sum of its proper divisors (1544412034).

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

1320010100 is a wasteful number, since it uses less digits than its factorization.

1320010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200115 (or 13200108 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1320010100 is about 36331.9432455794. The cubic root of 1320010100 is about 1096.9641082848.

Adding to 1320010100 its reverse (10100231), we get a palindrome (1330110331).

The spelling of 1320010100 in words is "one billion, three hundred twenty million, ten thousand, one hundred".