20002342103 has 4 divisors (see below), whose sum is σ = 21178950480. Its totient is φ = 18825733728.

The previous prime is 20002342033. The next prime is 20002342111. The reversal of 20002342103 is 30124320002.

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-20002342103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1176608359 = 20002342103 / (2 + 0 + 0 + 0 + 2 + 3 + 4 + 2 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002342153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588304163 + ... + 588304196.

It is an arithmetic number, because the mean of its divisors is an integer number (5294737620).

Almost surely, 2^20002342103 is an apocalyptic number.

20002342103 is a deficient number, since it is larger than the sum of its proper divisors (1176608377).

20002342103 is a wasteful number, since it uses less digits than its factorization.

20002342103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176608376.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20002342103 its reverse (30124320002), we get a palindrome (50126662105).

The spelling of 20002342103 in words is "twenty billion, two million, three hundred forty-two thousand, one hundred three".