3031105140 has 144 divisors (see below), whose sum is σ = 10964798208. Its totient is φ = 662694912.

The previous prime is 3031105123. The next prime is 3031105193. The reversal of 3031105140 is 415011303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23317 + ... + 81276.

It is an arithmetic number, because the mean of its divisors is an integer number (76144432).

Almost surely, 2^3031105140 is an apocalyptic number.

3031105140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3031105140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5482399104).

3031105140 is an abundant number, since it is smaller than the sum of its proper divisors (7933693068).

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

3031105140 is a wasteful number, since it uses less digits than its factorization.

3031105140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104638 (or 104633 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 3031105140 is about 55055.4732973934. The cubic root of 3031105140 is about 1447.2170386607.

Adding to 3031105140 its reverse (415011303), we get a palindrome (3446116443).

The spelling of 3031105140 in words is "three billion, thirty-one million, one hundred five thousand, one hundred forty".