103433021 has 4 divisors (see below), whose sum is σ = 103478844. Its totient is φ = 103387200.

The previous prime is 103432999. The next prime is 103433063. The reversal of 103433021 is 120334301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120334301 = 79 ⋅1523219.

It can be written as a sum of positive squares in 2 ways, for example, as 10310521 + 93122500 = 3211^2 + 9650^2 .

It is a cyclic number.

It is not a de Polignac number, because 103433021 - 2¹⁰ = 103431997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103438021) 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, 19340 + ... + 24101.

It is an arithmetic number, because the mean of its divisors is an integer number (25869711).

Almost surely, 2^103433021 is an apocalyptic number.

It is an amenable number.

103433021 is a deficient number, since it is larger than the sum of its proper divisors (45823).

103433021 is an equidigital number, since it uses as much as digits as its factorization.

103433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45822.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103433021 is about 10170.2026036849. The cubic root of 103433021 is about 469.4107917610.

Adding to 103433021 its reverse (120334301), we get a palindrome (223767322).

The spelling of 103433021 in words is "one hundred three million, four hundred thirty-three thousand, twenty-one".