31432048871 has 4 divisors (see below), whose sum is σ = 31435989312. Its totient is φ = 31428108432.

The previous prime is 31432048861. The next prime is 31432048873. The reversal of 31432048871 is 17884023413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17884023413 = 41 ⋅436195693.

It is a cyclic number.

It is not a de Polignac number, because 31432048871 - 2¹⁴ = 31432032487 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 (31432048873) 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, 1958231 + ... + 1974216.

It is an arithmetic number, because the mean of its divisors is an integer number (7858997328).

Almost surely, 2^31432048871 is an apocalyptic number.

31432048871 is a deficient number, since it is larger than the sum of its proper divisors (3940441).

31432048871 is an equidigital number, since it uses as much as digits as its factorization.

31432048871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940440.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 31432048871 in words is "thirty-one billion, four hundred thirty-two million, forty-eight thousand, eight hundred seventy-one".