20403414203 has 4 divisors (see below), whose sum is σ = 21106980240. Its totient is φ = 19699848168.

The previous prime is 20403414197. The next prime is 20403414223. The reversal of 20403414203 is 30241430402.

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 20403414203 - 2¹² = 20403410107 is a prime.

It is a super-2 number, since 2×20403414203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20403414223) 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, 351782975 + ... + 351783032.

It is an arithmetic number, because the mean of its divisors is an integer number (5276745060).

Almost surely, 2^20403414203 is an apocalyptic number.

20403414203 is a deficient number, since it is larger than the sum of its proper divisors (703566037).

20403414203 is an equidigital number, since it uses as much as digits as its factorization.

20403414203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703566036.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20403414203 its reverse (30241430402), we get a palindrome (50644844605).

The spelling of 20403414203 in words is "twenty billion, four hundred three million, four hundred fourteen thousand, two hundred three".