20312303033 has 12 divisors (see below), whose sum is σ = 22366478064. Its totient is φ = 18432869400.

The previous prime is 20312303021. The next prime is 20312303051. The reversal of 20312303033 is 33030321302.

It is not a de Polignac number, because 20312303033 - 2¹⁰ = 20312302009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312302996 and 20312303014.

It is not an unprimeable number, because it can be changed into a prime (20312303933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80963 + ... + 217208.

It is an arithmetic number, because the mean of its divisors is an integer number (1863873172).

Almost surely, 2^20312303033 is an apocalyptic number.

It is an amenable number.

20312303033 is a deficient number, since it is larger than the sum of its proper divisors (2054175031).

20312303033 is a wasteful number, since it uses less digits than its factorization.

20312303033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298756 (or 298745 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20312303033 its reverse (33030321302), we get a palindrome (53342624335).

The spelling of 20312303033 in words is "twenty billion, three hundred twelve million, three hundred three thousand, thirty-three".