20312401 has 8 divisors (see below), whose sum is σ = 20679680. Its totient is φ = 19948032.

The previous prime is 20312393. The next prime is 20312407. The reversal of 20312401 is 10421302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312401 - 2³ = 20312393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17041 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (2584960).

Almost surely, 2^20312401 is an apocalyptic number.

It is an amenable number.

20312401 is a deficient number, since it is larger than the sum of its proper divisors (367279).

20312401 is a wasteful number, since it uses less digits than its factorization.

20312401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20312401 is about 4506.9281112527. The cubic root of 20312401 is about 272.8477774911.

Adding to 20312401 its reverse (10421302), we get a palindrome (30733703).

The spelling of 20312401 in words is "twenty million, three hundred twelve thousand, four hundred one".