31222412344 has 8 divisors (see below), whose sum is σ = 58542023160. Its totient is φ = 15611206168.

The previous prime is 31222412339. The next prime is 31222412363. The reversal of 31222412344 is 44321422213.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951400764 + ... + 1951400779.

It is an arithmetic number, because the mean of its divisors is an integer number (7317752895).

Almost surely, 2^31222412344 is an apocalyptic number.

It is an amenable number.

31222412344 is a deficient number, since it is larger than the sum of its proper divisors (27319610816).

31222412344 is a wasteful number, since it uses less digits than its factorization.

31222412344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902801549 (or 3902801545 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

Adding to 31222412344 its reverse (44321422213), we get a palindrome (75543834557).

The spelling of 31222412344 in words is "thirty-one billion, two hundred twenty-two million, four hundred twelve thousand, three hundred forty-four".