20321030103 has 8 divisors (see below), whose sum is σ = 29557862016. Its totient is φ = 12315775800.

The previous prime is 20321030057. The next prime is 20321030137. The reversal of 20321030103 is 30103012302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20321030103 - 2¹⁶ = 20320964567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321020103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307894363 + ... + 307894428.

It is an arithmetic number, because the mean of its divisors is an integer number (3694732752).

Almost surely, 2^20321030103 is an apocalyptic number.

20321030103 is a deficient number, since it is larger than the sum of its proper divisors (9236831913).

20321030103 is a wasteful number, since it uses less digits than its factorization.

20321030103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615788805.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20321030103 its reverse (30103012302), we get a palindrome (50424042405).

It can be divided in two parts, 20 and 321030103, that added together give a palindrome (321030123).

The spelling of 20321030103 in words is "twenty billion, three hundred twenty-one million, thirty thousand, one hundred three".