103320421 has 4 divisors (see below), whose sum is σ = 103437792. Its totient is φ = 103203052.

The previous prime is 103320401. The next prime is 103320431. The reversal of 103320421 is 124023301.

It is a happy number.

103320421 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124023301 = 1583 ⋅78347.

It is a cyclic number.

It is not a de Polignac number, because 103320421 - 2⁷ = 103320293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103320395 and 103320404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103320401) 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, 57355 + ... + 59128.

It is an arithmetic number, because the mean of its divisors is an integer number (25859448).

Almost surely, 2^103320421 is an apocalyptic number.

It is an amenable number.

103320421 is a deficient number, since it is larger than the sum of its proper divisors (117371).

103320421 is an equidigital number, since it uses as much as digits as its factorization.

103320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117370.

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

The square root of 103320421 is about 10164.6653166742. The cubic root of 103320421 is about 469.2403921269.

Adding to 103320421 its reverse (124023301), we get a palindrome (227343722).

The spelling of 103320421 in words is "one hundred three million, three hundred twenty thousand, four hundred twenty-one".