20102343403 has 8 divisors (see below), whose sum is σ = 20529491040. Its totient is φ = 19679668800.

The previous prime is 20102343389. The next prime is 20102343409. The reversal of 20102343403 is 30434320102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102343403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102343409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1109175 + ... + 1127152.

It is an arithmetic number, because the mean of its divisors is an integer number (2566186380).

Almost surely, 2^20102343403 is an apocalyptic number.

20102343403 is a deficient number, since it is larger than the sum of its proper divisors (427147637).

20102343403 is a wasteful number, since it uses less digits than its factorization.

20102343403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236517.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20102343403 its reverse (30434320102), we get a palindrome (50536663505).

The spelling of 20102343403 in words is "twenty billion, one hundred two million, three hundred forty-three thousand, four hundred three".