20331321102103 has 4 divisors (see below), whose sum is σ = 22179623020488. Its totient is φ = 18483019183720.

The previous prime is 20331321102101. The next prime is 20331321102119. The reversal of 20331321102103 is 30120112313302.

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 20331321102103 - 2¹ = 20331321102101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331321102101) 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, 924150959176 + ... + 924150959197.

It is an arithmetic number, because the mean of its divisors is an integer number (5544905755122).

Almost surely, 2^{20331321102103} is an apocalyptic number.

20331321102103 is a deficient number, since it is larger than the sum of its proper divisors (1848301918385).

20331321102103 is a wasteful number, since it uses less digits than its factorization.

20331321102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848301918384.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20331321102103 its reverse (30120112313302), we get a palindrome (50451433415405).

The spelling of 20331321102103 in words is "twenty trillion, three hundred thirty-one billion, three hundred twenty-one million, one hundred two thousand, one hundred three".