31423303303 has 4 divisors (see below), whose sum is σ = 35912346640. Its totient is φ = 26934259968.

The previous prime is 31423303277. The next prime is 31423303333. The reversal of 31423303303 is 30330332413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30330332413 = 26017 ⋅1165789.

It is a de Polignac number, because none of the positive numbers 2^k-31423303303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31423303333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244521658 + ... + 2244521671.

It is an arithmetic number, because the mean of its divisors is an integer number (8978086660).

Almost surely, 2^31423303303 is an apocalyptic number.

31423303303 is a deficient number, since it is larger than the sum of its proper divisors (4489043337).

31423303303 is an equidigital number, since it uses as much as digits as its factorization.

31423303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489043336.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 31423303303 its reverse (30330332413), we get a palindrome (61753635716).

The spelling of 31423303303 in words is "thirty-one billion, four hundred twenty-three million, three hundred three thousand, three hundred three".