103400403 has 8 divisors (see below), whose sum is σ = 140468688. Its totient is φ = 67632864.

The previous prime is 103400377. The next prime is 103400419. The reversal of 103400403 is 304004301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103400403 - 2⁵ = 103400371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103400503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325000 + ... + 325317.

It is an arithmetic number, because the mean of its divisors is an integer number (17558586).

Almost surely, 2^103400403 is an apocalyptic number.

103400403 is a deficient number, since it is larger than the sum of its proper divisors (37068285).

103400403 is an equidigital number, since it uses as much as digits as its factorization.

103400403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650373.

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

The square root of 103400403 is about 10168.5988710343. The cubic root of 103400403 is about 469.3614430751.

Adding to 103400403 its reverse (304004301), we get a palindrome (407404704).

The spelling of 103400403 in words is "one hundred three million, four hundred thousand, four hundred three".