20312203307 has 16 divisors (see below), whose sum is σ = 22691588832. Its totient is φ = 18025163520.

The previous prime is 20312203291. The next prime is 20312203393. The reversal of 20312203307 is 70330221302.

It is a cyclic number.

It is not a de Polignac number, because 20312203307 - 2⁴ = 20312203291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20312203397) by changing a digit.

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, 26423 + ... + 203279.

It is an arithmetic number, because the mean of its divisors is an integer number (1418224302).

Almost surely, 2^20312203307 is an apocalyptic number.

20312203307 is a deficient number, since it is larger than the sum of its proper divisors (2379385525).

20312203307 is a wasteful number, since it uses less digits than its factorization.

20312203307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177118.

The product of its (nonzero) digits is 1512, while the sum is 23.

Adding to 20312203307 its reverse (70330221302), we get a palindrome (90642424609).

The spelling of 20312203307 in words is "twenty billion, three hundred twelve million, two hundred three thousand, three hundred seven".