3120231040 has 64 divisors (see below), whose sum is σ = 7490880000. Its totient is φ = 1242809344.

The previous prime is 3120231029. The next prime is 3120231067. The reversal of 3120231040 is 401320213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142761 + ... + 163159.

It is an arithmetic number, because the mean of its divisors is an integer number (117045000).

Almost surely, 2^3120231040 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 3120231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3745440000).

3120231040 is an abundant number, since it is smaller than the sum of its proper divisors (4370648960).

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

3120231040 is a wasteful number, since it uses less digits than its factorization.

3120231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20657 (or 20645 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3120231040 is about 55859.0282765463. The cubic root of 3120231040 is about 1461.2647825422.

Adding to 3120231040 its reverse (401320213), we get a palindrome (3521551253).

The spelling of 3120231040 in words is "three billion, one hundred twenty million, two hundred thirty-one thousand, forty".