31064366143 has 4 divisors (see below), whose sum is σ = 31153889160. Its totient is φ = 30974843128.

The previous prime is 31064366071. The next prime is 31064366197. The reversal of 31064366143 is 34166346013.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31064366143 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 (31064366843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44760988 + ... + 44761681.

It is an arithmetic number, because the mean of its divisors is an integer number (7788472290).

Almost surely, 2^31064366143 is an apocalyptic number.

31064366143 is a deficient number, since it is larger than the sum of its proper divisors (89523017).

31064366143 is an equidigital number, since it uses as much as digits as its factorization.

31064366143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89523016.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 31064366143 in words is "thirty-one billion, sixty-four million, three hundred sixty-six thousand, one hundred forty-three".