103280421 has 4 divisors (see below), whose sum is σ = 137707232. Its totient is φ = 68853612.

The previous prime is 103280417. The next prime is 103280461. The reversal of 103280421 is 124082301.

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.

It is not a de Polignac number, because 103280421 - 2² = 103280417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103280461) 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, 17213401 + ... + 17213406.

It is an arithmetic number, because the mean of its divisors is an integer number (34426808).

Almost surely, 2^103280421 is an apocalyptic number.

It is an amenable number.

103280421 is a deficient number, since it is larger than the sum of its proper divisors (34426811).

103280421 is an equidigital number, since it uses as much as digits as its factorization.

103280421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34426810.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 103280421 is about 10162.6975257556. The cubic root of 103280421 is about 469.1798295965.

The spelling of 103280421 in words is "one hundred three million, two hundred eighty thousand, four hundred twenty-one".