2311131543201 has 16 divisors (see below), whose sum is σ = 3687275397120. Its totient is φ = 1422234795600.

The previous prime is 2311131543191. The next prime is 2311131543233. The reversal of 2311131543201 is 1023451311132.

2311131543201 is a `hidden beast` number, since 2 + 3 + 1 + 113 + 1 + 543 + 2 + 0 + 1 = 666.

It is not a de Polignac number, because 2311131543201 - 2¹⁴ = 2311131526817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2311131543401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292209825 + ... + 3292210526.

It is an arithmetic number, because the mean of its divisors is an integer number (230454712320).

Almost surely, 2^{2311131543201} is an apocalyptic number.

It is an amenable number.

2311131543201 is a deficient number, since it is larger than the sum of its proper divisors (1376143853919).

2311131543201 is a wasteful number, since it uses less digits than its factorization.

2311131543201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6584420373 (or 6584420367 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 2311131543201 its reverse (1023451311132), we get a palindrome (3334582854333).

The spelling of 2311131543201 in words is "two trillion, three hundred eleven billion, one hundred thirty-one million, five hundred forty-three thousand, two hundred one".