103406403 has 4 divisors (see below), whose sum is σ = 137875208. Its totient is φ = 68937600.

The previous prime is 103406363. The next prime is 103406419. The reversal of 103406403 is 304604301.

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

It is not a de Polignac number, because 103406403 - 2¹² = 103402307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103406403.

It is not an unprimeable number, because it can be changed into a prime (103406003) 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, 17234398 + ... + 17234403.

It is an arithmetic number, because the mean of its divisors is an integer number (34468802).

Almost surely, 2^103406403 is an apocalyptic number.

103406403 is a deficient number, since it is larger than the sum of its proper divisors (34468805).

103406403 is an equidigital number, since it uses as much as digits as its factorization.

103406403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34468804.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 103406403 is about 10168.8938926513. The cubic root of 103406403 is about 469.3705214221.

The spelling of 103406403 in words is "one hundred three million, four hundred six thousand, four hundred three".