31043122441 has 4 divisors (see below), whose sum is σ = 31043481984. Its totient is φ = 31042762900.

The previous prime is 31043122381. The next prime is 31043122463. The reversal of 31043122441 is 14422134013.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31043122441 - 2⁹ = 31043121929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31043132441) 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, 36336 + ... + 251806.

It is an arithmetic number, because the mean of its divisors is an integer number (7760870496).

Almost surely, 2^31043122441 is an apocalyptic number.

It is an amenable number.

31043122441 is a deficient number, since it is larger than the sum of its proper divisors (359543).

31043122441 is a wasteful number, since it uses less digits than its factorization.

31043122441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359542.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31043122441 its reverse (14422134013), we get a palindrome (45465256454).

The spelling of 31043122441 in words is "thirty-one billion, forty-three million, one hundred twenty-two thousand, four hundred forty-one".