31122243340 has 24 divisors (see below), whose sum is σ = 65366077392. Its totient is φ = 12447113280.

The previous prime is 31122243337. The next prime is 31122243359. The reversal of 31122243340 is 4334222113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36322 + ... + 252118.

It is an arithmetic number, because the mean of its divisors is an integer number (2723586558).

Almost surely, 2^31122243340 is an apocalyptic number.

It is an amenable number.

31122243340 is an abundant number, since it is smaller than the sum of its proper divisors (34243834052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31122243340 is a wasteful number, since it uses less digits than its factorization.

31122243340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223017 (or 223015 counting only the distinct ones).

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

Adding to 31122243340 its reverse (4334222113), we get a palindrome (35456465453).

The spelling of 31122243340 in words is "thirty-one billion, one hundred twenty-two million, two hundred forty-three thousand, three hundred forty".