3111233240 has 64 divisors (see below), whose sum is σ = 7462044000. Its totient is φ = 1163388928.

The previous prime is 3111233227. The next prime is 3111233267. The reversal of 3111233240 is 423321113.

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 15 ways as a sum of consecutive naturals, for example, 85967 + ... + 116673.

Almost surely, 2^3111233240 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 3111233240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3731022000).

3111233240 is an abundant number, since it is smaller than the sum of its proper divisors (4350810760).

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

3111233240 is a wasteful number, since it uses less digits than its factorization.

3111233240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30884 (or 30880 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3111233240 is about 55778.4298810929. The cubic root of 3111233240 is about 1459.8588153962.

Adding to 3111233240 its reverse (423321113), we get a palindrome (3534554353).

The spelling of 3111233240 in words is "three billion, one hundred eleven million, two hundred thirty-three thousand, two hundred forty".