3111144140 has 48 divisors (see below), whose sum is σ = 7059071712. Its totient is φ = 1144958976.

The previous prime is 3111144121. The next prime is 3111144181. The reversal of 3111144140 is 414411113.

It is a super-4 number, since 4×3111144140⁴ (a number of 39 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60332 + ... + 99308.

It is an arithmetic number, because the mean of its divisors is an integer number (147063994).

Almost surely, 2^3111144140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111144140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3529535856).

3111144140 is an abundant number, since it is smaller than the sum of its proper divisors (3947927572).

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

3111144140 is a wasteful number, since it uses less digits than its factorization.

3111144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39306 (or 39304 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 3111144140 is about 55777.6311795329. The cubic root of 3111144140 is about 1459.8448793724.

Adding to 3111144140 its reverse (414411113), we get a palindrome (3525555253).

The spelling of 3111144140 in words is "three billion, one hundred eleven million, one hundred forty-four thousand, one hundred forty".