103021443 has 16 divisors (see below), whose sum is σ = 174428160. Its totient is φ = 58869288.

The previous prime is 103021423. The next prime is 103021483. The reversal of 103021443 is 344120301.

It is not a de Polignac number, because 103021443 - 2¹⁶ = 102955907 is a prime.

It is a super-2 number, since 2×103021443² = 21226835435604498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103021403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272355 + ... + 272732.

It is an arithmetic number, because the mean of its divisors is an integer number (10901760).

Almost surely, 2^103021443 is an apocalyptic number.

103021443 is a deficient number, since it is larger than the sum of its proper divisors (71406717).

103021443 is an equidigital number, since it uses as much as digits as its factorization.

103021443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545103 (or 545097 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 103021443 is about 10149.9479309009. The cubic root of 103021443 is about 468.7873416652.

Adding to 103021443 its reverse (344120301), we get a palindrome (447141744).

The spelling of 103021443 in words is "one hundred three million, twenty-one thousand, four hundred forty-three".