31483305811 has 4 divisors (see below), whose sum is σ = 31807876072. Its totient is φ = 31158735552.

The previous prime is 31483305797. The next prime is 31483305823. The reversal of 31483305811 is 11850338413.

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 31483305811 - 2⁷ = 31483305683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31483305011) 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, 162284985 + ... + 162285178.

It is an arithmetic number, because the mean of its divisors is an integer number (7951969018).

Almost surely, 2^31483305811 is an apocalyptic number.

31483305811 is a deficient number, since it is larger than the sum of its proper divisors (324570261).

31483305811 is an equidigital number, since it uses as much as digits as its factorization.

31483305811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324570260.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 31483305811 in words is "thirty-one billion, four hundred eighty-three million, three hundred five thousand, eight hundred eleven".