2001312395 has 4 divisors (see below), whose sum is σ = 2401574880. Its totient is φ = 1601049912.

The previous prime is 2001312373. The next prime is 2001312413. The reversal of 2001312395 is 5932131002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001312395 - 2⁸ = 2001312139 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 200131235 + ... + 200131244.

It is an arithmetic number, because the mean of its divisors is an integer number (600393720).

Almost surely, 2^2001312395 is an apocalyptic number.

2001312395 is a deficient number, since it is larger than the sum of its proper divisors (400262485).

2001312395 is an equidigital number, since it uses as much as digits as its factorization.

2001312395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400262484.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2001312395 is about 44736.0301658518. The cubic root of 2001312395 is about 1260.1965753183.

Adding to 2001312395 its reverse (5932131002), we get a palindrome (7933443397).

The spelling of 2001312395 in words is "two billion, one million, three hundred twelve thousand, three hundred ninety-five".