3111142240 has 24 divisors (see below), whose sum is σ = 7350073920. Its totient is φ = 1244456832.

The previous prime is 3111142231. The next prime is 3111142249. The reversal of 3111142240 is 422411113.

It is an interprime number because it is at equal distance from previous prime (3111142231) and next prime (3111142249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111142249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9722160 + ... + 9722479.

It is an arithmetic number, because the mean of its divisors is an integer number (306253080).

Almost surely, 2^3111142240 is an apocalyptic number.

It is an amenable number.

3111142240 is an abundant number, since it is smaller than the sum of its proper divisors (4238931680).

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

3111142240 is a wasteful number, since it uses less digits than its factorization.

3111142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444654 (or 19444646 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 3111142240 is about 55777.6141476130. The cubic root of 3111142240 is about 1459.8445821927.

Adding to 3111142240 its reverse (422411113), we get a palindrome (3533553353).

The spelling of 3111142240 in words is "three billion, one hundred eleven million, one hundred forty-two thousand, two hundred forty".