20312003130303 has 16 divisors (see below), whose sum is σ = 27724052505600. Its totient is φ = 13220907135744.

The previous prime is 20312003130281. The next prime is 20312003130407. The reversal of 20312003130303 is 30303130021302.

It is not a de Polignac number, because 20312003130303 - 2⁹ = 20312003129791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20312003130303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312003130103) 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, 32507826 + ... + 33126767.

It is an arithmetic number, because the mean of its divisors is an integer number (1732753281600).

Almost surely, 2^{20312003130303} is an apocalyptic number.

20312003130303 is a deficient number, since it is larger than the sum of its proper divisors (7412049375297).

20312003130303 is a wasteful number, since it uses less digits than its factorization.

20312003130303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65637038.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20312003130303 its reverse (30303130021302), we get a palindrome (50615133151605).

The spelling of 20312003130303 in words is "twenty trillion, three hundred twelve billion, three million, one hundred thirty thousand, three hundred three".