2311542640143 has 72 divisors (see below), whose sum is σ = 3886820355600. Its totient is φ = 1318217725440.

The previous prime is 2311542640139. The next prime is 2311542640157. The reversal of 2311542640143 is 3410462451132.

2311542640143 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 5 + 4 + 2 + 640 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 2311542640143 - 2² = 2311542640139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2311542640098 and 2311542640107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311542640163) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 95866773 + ... + 95890881.

It is an arithmetic number, because the mean of its divisors is an integer number (53983616050).

Almost surely, 2^{2311542640143} is an apocalyptic number.

2311542640143 is a deficient number, since it is larger than the sum of its proper divisors (1575277715457).

2311542640143 is a wasteful number, since it uses less digits than its factorization.

2311542640143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29333 (or 29319 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 2311542640143 in words is "two trillion, three hundred eleven billion, five hundred forty-two million, six hundred forty thousand, one hundred forty-three".