13420023 has 8 divisors (see below), whose sum is σ = 18835200. Its totient is φ = 8475768.

The previous prime is 13420019. The next prime is 13420031. The reversal of 13420023 is 32002431.

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

It is not a de Polignac number, because 13420023 - 2² = 13420019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13419984 and 13420011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420003) 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, 117663 + ... + 117776.

It is an arithmetic number, because the mean of its divisors is an integer number (2354400).

Almost surely, 2^13420023 is an apocalyptic number.

13420023 is a deficient number, since it is larger than the sum of its proper divisors (5415177).

13420023 is a wasteful number, since it uses less digits than its factorization.

13420023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235461.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13420023 is about 3663.3349560203. The cubic root of 13420023 is about 237.6390203631.

Adding to 13420023 its reverse (32002431), we get a palindrome (45422454).

The spelling of 13420023 in words is "thirteen million, four hundred twenty thousand, twenty-three".