2143230131331 has 40 divisors (see below), whose sum is σ = 3224109517200. Its totient is φ = 1418804251200.

The previous prime is 2143230131327. The next prime is 2143230131369. The reversal of 2143230131331 is 1331310323412.

2143230131331 is a `hidden beast` number, since 2 + 1 + 4 + 323 + 0 + 1 + 3 + 1 + 331 = 666.

It is not a de Polignac number, because 2143230131331 - 2² = 2143230131327 is a prime.

It is a super-2 number, since 2×2143230131331² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2143230131295 and 2143230131304.

It is not an unprimeable number, because it can be changed into a prime (2143230131531) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10058365 + ... + 10269233.

It is an arithmetic number, because the mean of its divisors is an integer number (80602737930).

Almost surely, 2^{2143230131331} is an apocalyptic number.

2143230131331 is a deficient number, since it is larger than the sum of its proper divisors (1080879385869).

2143230131331 is a wasteful number, since it uses less digits than its factorization.

2143230131331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211761 (or 211752 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 2143230131331 its reverse (1331310323412), we get a palindrome (3474540454743).

The spelling of 2143230131331 in words is "two trillion, one hundred forty-three billion, two hundred thirty million, one hundred thirty-one thousand, three hundred thirty-one".