2311143984 has 60 divisors (see below), whose sum is σ = 6471338536. Its totient is φ = 769982976.

The previous prime is 2311143959. The next prime is 2311143997. The reversal of 2311143984 is 4893411132.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 439032 + ... + 444264.

Almost surely, 2^2311143984 is an apocalyptic number.

2311143984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2311143984 is an abundant number, since it is smaller than the sum of its proper divisors (4160194552).

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

2311143984 is a wasteful number, since it uses less digits than its factorization.

2311143984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8314 (or 8305 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2311143984 is about 48074.3589036817. The cubic root of 2311143984 is about 1322.1345903407.

The spelling of 2311143984 in words is "two billion, three hundred eleven million, one hundred forty-three thousand, nine hundred eighty-four".