20203333123 has 2 divisors, whose sum is σ = 20203333124. Its totient is φ = 20203333122.

The previous prime is 20203333093. The next prime is 20203333141. The reversal of 20203333123 is 32133330202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203333123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203333094 and 20203333103.

It is not a weakly prime, because it can be changed into another prime (20203333523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101666561 + 10101666562.

It is an arithmetic number, because the mean of its divisors is an integer number (10101666562).

Almost surely, 2^20203333123 is an apocalyptic number.

20203333123 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203333123 is an equidigital number, since it uses as much as digits as its factorization.

20203333123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20203333123 its reverse (32133330202), we get a palindrome (52336663325).

The spelling of 20203333123 in words is "twenty billion, two hundred three million, three hundred thirty-three thousand, one hundred twenty-three".