20212103423 has 8 divisors (see below), whose sum is σ = 21575560320. Its totient is φ = 18878612760.

The previous prime is 20212103411. The next prime is 20212103459. The reversal of 20212103423 is 32430121202.

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

It is a cyclic number.

It is not a de Polignac number, because 20212103423 - 2³⁴ = 3032234239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20212103395 and 20212103404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212103473) 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, 7490165 + ... + 7492862.

It is an arithmetic number, because the mean of its divisors is an integer number (2696945040).

Almost surely, 2^20212103423 is an apocalyptic number.

20212103423 is a deficient number, since it is larger than the sum of its proper divisors (1363456897).

20212103423 is a wasteful number, since it uses less digits than its factorization.

20212103423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14983117.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20212103423 its reverse (32430121202), we get a palindrome (52642224625).

The spelling of 20212103423 in words is "twenty billion, two hundred twelve million, one hundred three thousand, four hundred twenty-three".