20012120122003 has 2 divisors, whose sum is σ = 20012120122004. Its totient is φ = 20012120122002.

The previous prime is 20012120121923. The next prime is 20012120122009. The reversal of 20012120122003 is 30022102121002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012120122003 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012120122009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006060061001 + 10006060061002.

It is an arithmetic number, because the mean of its divisors is an integer number (10006060061002).

Almost surely, 2^{20012120122003} is an apocalyptic number.

20012120122003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012120122003 is an equidigital number, since it uses as much as digits as its factorization.

20012120122003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20012120122003 its reverse (30022102121002), we get a palindrome (50034222243005).

The spelling of 20012120122003 in words is "twenty trillion, twelve billion, one hundred twenty million, one hundred twenty-two thousand, three".