20413331203 has 4 divisors (see below), whose sum is σ = 20413892520. Its totient is φ = 20412769888.

The previous prime is 20413331189. The next prime is 20413331209. The reversal of 20413331203 is 30213331402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20413331203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20413331209) 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, 222025 + ... + 300202.

It is an arithmetic number, because the mean of its divisors is an integer number (5103473130).

Almost surely, 2^20413331203 is an apocalyptic number.

20413331203 is a deficient number, since it is larger than the sum of its proper divisors (561317).

20413331203 is an equidigital number, since it uses as much as digits as its factorization.

20413331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561316.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20413331203 its reverse (30213331402), we get a palindrome (50626662605).

The spelling of 20413331203 in words is "twenty billion, four hundred thirteen million, three hundred thirty-one thousand, two hundred three".