103431342321 has 12 divisors (see below), whose sum is σ = 157264029520. Its totient is φ = 65325058200.

The previous prime is 103431342293. The next prime is 103431342409. The reversal of 103431342321 is 123243134301.

It is a happy number.

It is not a de Polignac number, because 103431342321 - 2²⁶ = 103364233457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103431342221) 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 11 ways as a sum of consecutive naturals, for example, 302430655 + ... + 302430996.

Almost surely, 2^103431342321 is an apocalyptic number.

It is an amenable number.

103431342321 is a deficient number, since it is larger than the sum of its proper divisors (53832687199).

103431342321 is a wasteful number, since it uses less digits than its factorization.

103431342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604861676 (or 604861673 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 103431342321 its reverse (123243134301), we get a palindrome (226674476622).

The spelling of 103431342321 in words is "one hundred three billion, four hundred thirty-one million, three hundred forty-two thousand, three hundred twenty-one".