103220403 has 16 divisors (see below), whose sum is σ = 161688576. Its totient is φ = 57745440.

The previous prime is 103220387. The next prime is 103220419. The reversal of 103220403 is 304022301.

It is an interprime number because it is at equal distance from previous prime (103220387) and next prime (103220419).

It is not a de Polignac number, because 103220403 - 2⁴ = 103220387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103220443) 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, 119875 + ... + 120732.

It is an arithmetic number, because the mean of its divisors is an integer number (10105536).

Almost surely, 2^103220403 is an apocalyptic number.

103220403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

103220403 is a deficient number, since it is larger than the sum of its proper divisors (58468173).

103220403 is a wasteful number, since it uses less digits than its factorization.

103220403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240634.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 103220403 is about 10159.7442389068. The cubic root of 103220403 is about 469.0889292074.

Adding to 103220403 its reverse (304022301), we get a palindrome (407242704).

The spelling of 103220403 in words is "one hundred three million, two hundred twenty thousand, four hundred three".