1320100001 has 16 divisors (see below), whose sum is σ = 1522838016. Its totient is φ = 1133040000.

The previous prime is 1320099971. The next prime is 1320100003. The reversal of 1320100001 is 1000010231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33230 + ... + 61191.

It is an arithmetic number, because the mean of its divisors is an integer number (95177376).

Almost surely, 2^1320100001 is an apocalyptic number.

1320100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320100001 is a deficient number, since it is larger than the sum of its proper divisors (202738015).

1320100001 is a wasteful number, since it uses less digits than its factorization.

1320100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94504.

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

The square root of 1320100001 is about 36333.1804415743. The cubic root of 1320100001 is about 1096.9890111072.

Adding to 1320100001 its reverse (1000010231), we get a palindrome (2320110232).

The spelling of 1320100001 in words is "one billion, three hundred twenty million, one hundred thousand, one".