20310303311 has 8 divisors (see below), whose sum is σ = 21094007040. Its totient is φ = 19541248408.

The previous prime is 20310303283. The next prime is 20310303319. The reversal of 20310303311 is 11330301302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20310303311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20310303311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310303319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3659381 + ... + 3664926.

It is an arithmetic number, because the mean of its divisors is an integer number (2636750880).

Almost surely, 2^20310303311 is an apocalyptic number.

20310303311 is a deficient number, since it is larger than the sum of its proper divisors (783703729).

20310303311 is an equidigital number, since it uses as much as digits as its factorization.

20310303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324413.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20310303311 its reverse (11330301302), we get a palindrome (31640604613).

The spelling of 20310303311 in words is "twenty billion, three hundred ten million, three hundred three thousand, three hundred eleven".