3311112978 has 40 divisors (see below), whose sum is σ = 7450219260. Its totient is φ = 1099111680.

The previous prime is 3311112977. The next prime is 3311112979. The reversal of 3311112978 is 8792111133.

It is an interprime number because it is at equal distance from previous prime (3311112977) and next prime (3311112979).

It can be written as a sum of positive squares in 2 ways, for example, as 3273327369 + 37785609 = 57213^2 + 6147^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3311112977) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3363 + ... + 81446.

Almost surely, 2^3311112978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3311112978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3725109630).

3311112978 is an abundant number, since it is smaller than the sum of its proper divisors (4139106282).

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

3311112978 is a wasteful number, since it uses less digits than its factorization.

3311112978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85064 (or 85055 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 3311112978 is about 57542.2712273334. The cubic root of 3311112978 is about 1490.4748989952.

The spelling of 3311112978 in words is "three billion, three hundred eleven million, one hundred twelve thousand, nine hundred seventy-eight".