31340221423 has 8 divisors (see below), whose sum is σ = 35846549280. Its totient is φ = 26841181920.

The previous prime is 31340221417. The next prime is 31340221447. The reversal of 31340221423 is 32412204313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31340221423 - 2²⁹ = 30803350511 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 (31340221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812868 + ... + 1830073.

It is an arithmetic number, because the mean of its divisors is an integer number (4480818660).

Almost surely, 2^31340221423 is an apocalyptic number.

31340221423 is a deficient number, since it is larger than the sum of its proper divisors (4506327857).

31340221423 is a wasteful number, since it uses less digits than its factorization.

31340221423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644177.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31340221423 its reverse (32412204313), we get a palindrome (63752425736).

The spelling of 31340221423 in words is "thirty-one billion, three hundred forty million, two hundred twenty-one thousand, four hundred twenty-three".