20134030403 has 4 divisors (see below), whose sum is σ = 20417608368. Its totient is φ = 19850452440.

The previous prime is 20134030387. The next prime is 20134030507. The reversal of 20134030403 is 30403043102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20134030403 - 2⁴ = 20134030387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20134030003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141788876 + ... + 141789017.

It is an arithmetic number, because the mean of its divisors is an integer number (5104402092).

Almost surely, 2^20134030403 is an apocalyptic number.

20134030403 is a deficient number, since it is larger than the sum of its proper divisors (283577965).

20134030403 is an equidigital number, since it uses as much as digits as its factorization.

20134030403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283577964.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20134030403 its reverse (30403043102), we get a palindrome (50537073505).

The spelling of 20134030403 in words is "twenty billion, one hundred thirty-four million, thirty thousand, four hundred three".