103404031 has 4 divisors (see below), whose sum is σ = 103439392. Its totient is φ = 103368672.

The previous prime is 103404029. The next prime is 103404071. The reversal of 103404031 is 130404301.

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

It is a cyclic number.

It is not a de Polignac number, because 103404031 - 2¹ = 103404029 is a prime.

It is a super-2 number, since 2×103404031² = 21384787254097922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103403996 and 103404014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103404071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12855 + ... + 19288.

It is an arithmetic number, because the mean of its divisors is an integer number (25859848).

Almost surely, 2^103404031 is an apocalyptic number.

103404031 is a deficient number, since it is larger than the sum of its proper divisors (35361).

103404031 is an equidigital number, since it uses as much as digits as its factorization.

103404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35360.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103404031 is about 10168.7772617950. Note that the first 3 decimals coincide. The cubic root of 103404031 is about 469.3669324909.

Adding to 103404031 its reverse (130404301), we get a palindrome (233808332).

The spelling of 103404031 in words is "one hundred three million, four hundred four thousand, thirty-one".