3111140540 has 24 divisors (see below), whose sum is σ = 6817456800. Its totient is φ = 1190349248.

The previous prime is 3111140537. The next prime is 3111140567. The reversal of 3111140540 is 450411113.

It is a happy number.

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

It is a congruent number.

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, 3381215 + ... + 3382134.

It is an arithmetic number, because the mean of its divisors is an integer number (284060700).

Almost surely, 2^3111140540 is an apocalyptic number.

It is an amenable number.

3111140540 is an abundant number, since it is smaller than the sum of its proper divisors (3706316260).

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

3111140540 is a wasteful number, since it uses less digits than its factorization.

3111140540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6763381 (or 6763379 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 3111140540 is about 55777.5989085224. The cubic root of 3111140540 is about 1459.8443162951.

Adding to 3111140540 its reverse (450411113), we get a palindrome (3561551653).

The spelling of 3111140540 in words is "three billion, one hundred eleven million, one hundred forty thousand, five hundred forty".