103403431 has 8 divisors (see below), whose sum is σ = 105868224. Its totient is φ = 100949760.

The previous prime is 103403413. The next prime is 103403483. The reversal of 103403431 is 134304301.

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

It is a cyclic number.

It is not a de Polignac number, because 103403431 - 2¹¹ = 103401383 is a prime.

It is a super-3 number, since 3×103403431³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103403399 and 103403408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103400431) 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, 17811 + ... + 22891.

It is an arithmetic number, because the mean of its divisors is an integer number (13233528).

Almost surely, 2^103403431 is an apocalyptic number.

103403431 is a deficient number, since it is larger than the sum of its proper divisors (2464793).

103403431 is an equidigital number, since it uses as much as digits as its factorization.

103403431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 103403431 is about 10168.7477596801. The cubic root of 103403431 is about 469.3660246581.

Adding to 103403431 its reverse (134304301), we get a palindrome (237707732).

The spelling of 103403431 in words is "one hundred three million, four hundred three thousand, four hundred thirty-one".