31304000100403 has 4 divisors (see below), whose sum is σ = 31305719079688. Its totient is φ = 31302281121120.

The previous prime is 31304000100389. The next prime is 31304000100433. The reversal of 31304000100403 is 30400100040313.

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 31304000100403 - 2⁹ = 31304000099891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31304000100433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859462326 + ... + 859498747.

It is an arithmetic number, because the mean of its divisors is an integer number (7826429769922).

Almost surely, 2^{31304000100403} is an apocalyptic number.

31304000100403 is a deficient number, since it is larger than the sum of its proper divisors (1718979285).

31304000100403 is a wasteful number, since it uses less digits than its factorization.

31304000100403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718979284.

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

Adding to 31304000100403 its reverse (30400100040313), we get a palindrome (61704100140716).

The spelling of 31304000100403 in words is "thirty-one trillion, three hundred four billion, one hundred thousand, four hundred three".