31040505550271 has 4 divisors (see below), whose sum is σ = 35474863486032. Its totient is φ = 26606147614512.

The previous prime is 31040505550267. The next prime is 31040505550273. The reversal of 31040505550271 is 17205550504013.

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 31040505550271 - 2² = 31040505550267 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 (31040505550273) 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, 2217178967870 + ... + 2217178967883.

It is an arithmetic number, because the mean of its divisors is an integer number (8868715871508).

Almost surely, 2^{31040505550271} is an apocalyptic number.

31040505550271 is a deficient number, since it is larger than the sum of its proper divisors (4434357935761).

31040505550271 is an equidigital number, since it uses as much as digits as its factorization.

31040505550271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434357935760.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 31040505550271 in words is "thirty-one trillion, forty billion, five hundred five million, five hundred fifty thousand, two hundred seventy-one".