31344444213 has 4 divisors (see below), whose sum is σ = 41792592288. Its totient is φ = 20896296140.

The previous prime is 31344444211. The next prime is 31344444221. The reversal of 31344444213 is 31244444313.

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 a cyclic number.

It is not a de Polignac number, because 31344444213 - 2¹ = 31344444211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344444211) 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, 5224074033 + ... + 5224074038.

It is an arithmetic number, because the mean of its divisors is an integer number (10448148072).

Almost surely, 2^31344444213 is an apocalyptic number.

It is an amenable number.

31344444213 is a deficient number, since it is larger than the sum of its proper divisors (10448148075).

31344444213 is a wasteful number, since it uses less digits than its factorization.

31344444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448148074.

The product of its digits is 55296, while the sum is 33.

Adding to 31344444213 its reverse (31244444313), we get a palindrome (62588888526).

The spelling of 31344444213 in words is "thirty-one billion, three hundred forty-four million, four hundred forty-four thousand, two hundred thirteen".