31230440243122 has 8 divisors (see below), whose sum is σ = 46976149670400. Its totient is φ = 15571723686324.

The previous prime is 31230440243113. The next prime is 31230440243143. The reversal of 31230440243122 is 22134204403213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21748216722 + ... + 21748218157.

It is an arithmetic number, because the mean of its divisors is an integer number (5872018708800).

Almost surely, 2^{31230440243122} is an apocalyptic number.

31230440243122 is a deficient number, since it is larger than the sum of its proper divisors (15745709427278).

31230440243122 is a wasteful number, since it uses less digits than its factorization.

31230440243122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43496435240.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 31230440243122 its reverse (22134204403213), we get a palindrome (53364644646335).

The spelling of 31230440243122 in words is "thirty-one trillion, two hundred thirty billion, four hundred forty million, two hundred forty-three thousand, one hundred twenty-two".