31341344421 has 4 divisors (see below), whose sum is σ = 41788459232. Its totient is φ = 20894229612.

The previous prime is 31341344401. The next prime is 31341344467. The reversal of 31341344421 is 12444314313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31341344421 - 2⁵ = 31341344389 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 (31341344401) 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, 5223557401 + ... + 5223557406.

It is an arithmetic number, because the mean of its divisors is an integer number (10447114808).

Almost surely, 2^31341344421 is an apocalyptic number.

It is an amenable number.

31341344421 is a deficient number, since it is larger than the sum of its proper divisors (10447114811).

31341344421 is a wasteful number, since it uses less digits than its factorization.

31341344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447114810.

The product of its digits is 13824, while the sum is 30.

Adding to 31341344421 its reverse (12444314313), we get a palindrome (43785658734).

The spelling of 31341344421 in words is "thirty-one billion, three hundred forty-one million, three hundred forty-four thousand, four hundred twenty-one".