2311999992 has 96 divisors (see below), whose sum is σ = 6368544000. Its totient is φ = 757616640.

The previous prime is 2311999969. The next prime is 2312000023. The reversal of 2311999992 is 2999991132.

2311999992 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2311999992³ (a number of 29 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1222984 + ... + 1224872.

It is an arithmetic number, because the mean of its divisors is an integer number (66339000).

Almost surely, 2^2311999992 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 2311999992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3184272000).

2311999992 is an abundant number, since it is smaller than the sum of its proper divisors (4056544008).

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

2311999992 is a wasteful number, since it uses less digits than its factorization.

2311999992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181 (or 2174 counting only the distinct ones).

The product of its digits is 708588, while the sum is 54.

The square root of 2311999992 is about 48083.2610374962. The cubic root of 2311999992 is about 1322.2978021664.

The spelling of 2311999992 in words is "two billion, three hundred eleven million, nine hundred ninety-nine thousand, nine hundred ninety-two".