20020312303 has 16 divisors (see below), whose sum is σ = 20990031552. Its totient is φ = 19059040000.

The previous prime is 20020312289. The next prime is 20020312307. The reversal of 20020312303 is 30321302002.

It is a cyclic number.

It is not a de Polignac number, because 20020312303 - 2³³ = 11430377711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020312307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8407173 + ... + 8409553.

It is an arithmetic number, because the mean of its divisors is an integer number (1311876972).

Almost surely, 2^20020312303 is an apocalyptic number.

20020312303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20020312303 is a deficient number, since it is larger than the sum of its proper divisors (969719249).

20020312303 is a wasteful number, since it uses less digits than its factorization.

20020312303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20020312303 its reverse (30321302002), we get a palindrome (50341614305).

The spelling of 20020312303 in words is "twenty billion, twenty million, three hundred twelve thousand, three hundred three".