20312035 has 16 divisors (see below), whose sum is σ = 25583040. Its totient is φ = 15460480.

The previous prime is 20312021. The next prime is 20312053. The reversal of 20312035 is 53021302.

It is a de Polignac number, because none of the positive numbers 2^k-20312035 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 15 ways as a sum of consecutive naturals, for example, 9309 + ... + 11281.

It is an arithmetic number, because the mean of its divisors is an integer number (1598940).

Almost surely, 2^20312035 is an apocalyptic number.

20312035 is a deficient number, since it is larger than the sum of its proper divisors (5271005).

20312035 is a wasteful number, since it uses less digits than its factorization.

20312035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20312035 is about 4506.8875069165. The cubic root of 20312035 is about 272.8461387076.

Adding to 20312035 its reverse (53021302), we get a palindrome (73333337).

The spelling of 20312035 in words is "twenty million, three hundred twelve thousand, thirty-five".