3111043340 has 12 divisors (see below), whose sum is σ = 6533191056. Its totient is φ = 1244417328.

The previous prime is 3111043289. The next prime is 3111043363. The reversal of 3111043340 is 433401113.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 155552167 = 3111043340 / (3 + 1 + 1 + 1 + 0 + 4 + 3 + 3 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77776064 + ... + 77776103.

It is an arithmetic number, because the mean of its divisors is an integer number (544432588).

Almost surely, 2^3111043340 is an apocalyptic number.

It is an amenable number.

3111043340 is an abundant number, since it is smaller than the sum of its proper divisors (3422147716).

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

3111043340 is a wasteful number, since it uses less digits than its factorization.

3111043340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155552176 (or 155552174 counting only the distinct ones).

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

The square root of 3111043340 is about 55776.7275841816. The cubic root of 3111043340 is about 1459.8291130448.

Adding to 3111043340 its reverse (433401113), we get a palindrome (3544444453).

The spelling of 3111043340 in words is "three billion, one hundred eleven million, forty-three thousand, three hundred forty".