103431001 has 4 divisors (see below), whose sum is σ = 103617252. Its totient is φ = 103244752.

The previous prime is 103430993. The next prime is 103431007. The reversal of 103431001 is 100134301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53304601 + 50126400 = 7301^2 + 7080^2 .

It is a cyclic number.

It is not a de Polignac number, because 103431001 - 2³ = 103430993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103431007) 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, 92290 + ... + 93403.

It is an arithmetic number, because the mean of its divisors is an integer number (25904313).

Almost surely, 2^103431001 is an apocalyptic number.

It is an amenable number.

103431001 is a deficient number, since it is larger than the sum of its proper divisors (186251).

103431001 is an equidigital number, since it uses as much as digits as its factorization.

103431001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186250.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103431001 is about 10170.1032934774. The cubic root of 103431001 is about 469.4077359478.

Adding to 103431001 its reverse (100134301), we get a palindrome (203565302).

The spelling of 103431001 in words is "one hundred three million, four hundred thirty-one thousand, one".