20123340303 has 16 divisors (see below), whose sum is σ = 29286047232. Its totient is φ = 12189408000.

The previous prime is 20123340301. The next prime is 20123340353. The reversal of 20123340303 is 30304332102.

It is not a de Polignac number, because 20123340303 - 2¹ = 20123340301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20123340303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123340301) 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, 101218 + ... + 224703.

It is an arithmetic number, because the mean of its divisors is an integer number (1830377952).

Almost surely, 2^20123340303 is an apocalyptic number.

20123340303 is a deficient number, since it is larger than the sum of its proper divisors (9162706929).

20123340303 is a wasteful number, since it uses less digits than its factorization.

20123340303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327806.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20123340303 its reverse (30304332102), we get a palindrome (50427672405).

The spelling of 20123340303 in words is "twenty billion, one hundred twenty-three million, three hundred forty thousand, three hundred three".