103235021 has 4 divisors (see below), whose sum is σ = 103258044. Its totient is φ = 103212000.

The previous prime is 103235009. The next prime is 103235023. The reversal of 103235021 is 120532301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120532301 = 9227 ⋅13063.

It can be written as a sum of positive squares in 2 ways, for example, as 69722500 + 33512521 = 8350^2 + 5789^2 .

It is a cyclic number.

It is not a de Polignac number, because 103235021 - 2¹⁴ = 103218637 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 (103235023) 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, 2360 + ... + 14561.

It is an arithmetic number, because the mean of its divisors is an integer number (25814511).

Almost surely, 2^103235021 is an apocalyptic number.

It is an amenable number.

103235021 is a deficient number, since it is larger than the sum of its proper divisors (23023).

103235021 is an equidigital number, since it uses as much as digits as its factorization.

103235021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23022.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 103235021 is about 10160.4636213118. The cubic root of 103235021 is about 469.1110721756. Note that the first 3 decimals are identical.

Adding to 103235021 its reverse (120532301), we get a palindrome (223767322).

The spelling of 103235021 in words is "one hundred three million, two hundred thirty-five thousand, twenty-one".