31313100403 has 8 divisors (see below), whose sum is σ = 34809600896. Its totient is φ = 27972000000.

The previous prime is 31313100373. The next prime is 31313100409. The reversal of 31313100403 is 30400131313.

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 31313100403 - 2¹³ = 31313092211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31313100409) 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 7 ways as a sum of consecutive naturals, for example, 38849598 + ... + 38850403.

It is an arithmetic number, because the mean of its divisors is an integer number (4351200112).

Almost surely, 2^31313100403 is an apocalyptic number.

31313100403 is a deficient number, since it is larger than the sum of its proper divisors (3496500493).

31313100403 is a wasteful number, since it uses less digits than its factorization.

31313100403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77700045.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31313100403 its reverse (30400131313), we get a palindrome (61713231716).

The spelling of 31313100403 in words is "thirty-one billion, three hundred thirteen million, one hundred thousand, four hundred three".