1320232001 has 4 divisors (see below), whose sum is σ = 1440253104. Its totient is φ = 1200210900.

The previous prime is 1320231977. The next prime is 1320232013. The reversal of 1320232001 is 1002320231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320232001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320232031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60010535 + ... + 60010556.

It is an arithmetic number, because the mean of its divisors is an integer number (360063276).

Almost surely, 2^1320232001 is an apocalyptic number.

1320232001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320232001 is a deficient number, since it is larger than the sum of its proper divisors (120021103).

1320232001 is a wasteful number, since it uses less digits than its factorization.

1320232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120021102.

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

The square root of 1320232001 is about 36334.9969175725. The cubic root of 1320232001 is about 1097.0255734190.

Adding to 1320232001 its reverse (1002320231), we get a palindrome (2322552232).

The spelling of 1320232001 in words is "one billion, three hundred twenty million, two hundred thirty-two thousand, one".