31105080843 has 4 divisors (see below), whose sum is σ = 41473441128. Its totient is φ = 20736720560.

The previous prime is 31105080841. The next prime is 31105080847. The reversal of 31105080843 is 34808050113.

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 31105080843 - 2¹ = 31105080841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31105080841) 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, 5184180138 + ... + 5184180143.

It is an arithmetic number, because the mean of its divisors is an integer number (10368360282).

Almost surely, 2^31105080843 is an apocalyptic number.

31105080843 is a deficient number, since it is larger than the sum of its proper divisors (10368360285).

31105080843 is a wasteful number, since it uses less digits than its factorization.

31105080843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10368360284.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 31105080843 in words is "thirty-one billion, one hundred five million, eighty thousand, eight hundred forty-three".