103002421 has 4 divisors (see below), whose sum is σ = 103127500. Its totient is φ = 102877344.

The previous prime is 103002409. The next prime is 103002443. The reversal of 103002421 is 124200301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68062500 + 34939921 = 8250^2 + 5911^2 .

It is a cyclic number.

It is not a de Polignac number, because 103002421 - 2⁷ = 103002293 is a prime.

It is a super-2 number, since 2×103002421² = 21218997463722482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103002451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61296 + ... + 62953.

It is an arithmetic number, because the mean of its divisors is an integer number (25781875).

Almost surely, 2^103002421 is an apocalyptic number.

It is an amenable number.

103002421 is a deficient number, since it is larger than the sum of its proper divisors (125079).

103002421 is an equidigital number, since it uses as much as digits as its factorization.

103002421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125078.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 103002421 is about 10149.0108385005. The cubic root of 103002421 is about 468.7584874078.

Adding to 103002421 its reverse (124200301), we get a palindrome (227202722).

It can be divided in two parts, 10300 and 2421, that added together give a palindrome (12721).

The spelling of 103002421 in words is "one hundred three million, two thousand, four hundred twenty-one".