20102103223 has 4 divisors (see below), whose sum is σ = 20106458008. Its totient is φ = 20097748440.

The previous prime is 20102103209. The next prime is 20102103257. The reversal of 20102103223 is 32230120102.

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 20102103223 - 2⁵ = 20102103191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20102103197 and 20102103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102103283) 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, 2170461 + ... + 2179702.

It is an arithmetic number, because the mean of its divisors is an integer number (5026614502).

Almost surely, 2^20102103223 is an apocalyptic number.

20102103223 is a deficient number, since it is larger than the sum of its proper divisors (4354785).

20102103223 is an equidigital number, since it uses as much as digits as its factorization.

20102103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354784.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20102103223 its reverse (32230120102), we get a palindrome (52332223325).

The spelling of 20102103223 in words is "twenty billion, one hundred two million, one hundred three thousand, two hundred twenty-three".