31853446343 has 4 divisors (see below), whose sum is σ = 31855546680. Its totient is φ = 31851346008.

The previous prime is 31853446321. The next prime is 31853446379. The reversal of 31853446343 is 34364435813.

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 31853446343 - 2¹⁸ = 31853184199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31853446294 and 31853446303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31853449343) 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, 1027253 + ... + 1057806.

It is an arithmetic number, because the mean of its divisors is an integer number (7963886670).

Almost surely, 2^31853446343 is an apocalyptic number.

31853446343 is a deficient number, since it is larger than the sum of its proper divisors (2100337).

31853446343 is a wasteful number, since it uses less digits than its factorization.

31853446343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100336.

The product of its digits is 1244160, while the sum is 44.

The spelling of 31853446343 in words is "thirty-one billion, eight hundred fifty-three million, four hundred forty-six thousand, three hundred forty-three".