3111344140242 has 64 divisors (see below), whose sum is σ = 6775971914880. Its totient is φ = 946693453824.

The previous prime is 3111344140213. The next prime is 3111344140243. The reversal of 3111344140242 is 2420414431113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3111344140243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9131313 + ... + 9465915.

It is an arithmetic number, because the mean of its divisors is an integer number (105874561170).

Almost surely, 2^{3111344140242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111344140242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3387985957440).

3111344140242 is an abundant number, since it is smaller than the sum of its proper divisors (3664627774638).

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

3111344140242 is a wasteful number, since it uses less digits than its factorization.

3111344140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335947.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 3111344140242 its reverse (2420414431113), we get a palindrome (5531758571355).

The spelling of 3111344140242 in words is "three trillion, one hundred eleven billion, three hundred forty-four million, one hundred forty thousand, two hundred forty-two".