2311043212140 has 96 divisors (see below), whose sum is σ = 7130746672896. Its totient is φ = 555642581760.

The previous prime is 2311043212139. The next prime is 2311043212199. The reversal of 2311043212140 is 412123401132.

It is a self number, because there is not a number n which added to its sum of digits gives 2311043212140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34418506 + ... + 34485585.

It is an arithmetic number, because the mean of its divisors is an integer number (74278611176).

Almost surely, 2^{2311043212140} is an apocalyptic number.

2311043212140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311043212140 is an abundant number, since it is smaller than the sum of its proper divisors (4819703460756).

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

2311043212140 is a wasteful number, since it uses less digits than its factorization.

2311043212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68904159 (or 68904157 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 2311043212140 its reverse (412123401132), we get a palindrome (2723166613272).

The spelling of 2311043212140 in words is "two trillion, three hundred eleven billion, forty-three million, two hundred twelve thousand, one hundred forty".