20134444403 has 2 divisors, whose sum is σ = 20134444404. Its totient is φ = 20134444402.

The previous prime is 20134444391. The next prime is 20134444493. The reversal of 20134444403 is 30444443102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20134444403 - 2⁸ = 20134444147 is a prime.

It is not a weakly prime, because it can be changed into another prime (20134444493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067222201 + 10067222202.

It is an arithmetic number, because the mean of its divisors is an integer number (10067222202).

Almost surely, 2^20134444403 is an apocalyptic number.

20134444403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134444403 is an equidigital number, since it uses as much as digits as its factorization.

20134444403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 20134444403 its reverse (30444443102), we get a palindrome (50578887505).

The spelling of 20134444403 in words is "twenty billion, one hundred thirty-four million, four hundred forty-four thousand, four hundred three".