12020311303 has 32 divisors (see below), whose sum is σ = 16148547072. Its totient is φ = 8640950400.

The previous prime is 12020311291. The next prime is 12020311307. The reversal of 12020311303 is 30311302021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020311303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020311307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3062100 + ... + 3066022.

It is an arithmetic number, because the mean of its divisors is an integer number (504642096).

Almost surely, 2^12020311303 is an apocalyptic number.

12020311303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12020311303 is a deficient number, since it is larger than the sum of its proper divisors (4128235769).

12020311303 is a wasteful number, since it uses less digits than its factorization.

12020311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12020311303 its reverse (30311302021), we get a palindrome (42331613324).

It can be divided in two parts, 12020 and 311303, that added together give a palindrome (323323).

The spelling of 12020311303 in words is "twelve billion, twenty million, three hundred eleven thousand, three hundred three".