2143020234231 has 12 divisors (see below), whose sum is σ = 3095599971880. Its totient is φ = 1428621863760.

The previous prime is 2143020234203. The next prime is 2143020234247. The reversal of 2143020234231 is 1324320203412.

2143020234231 is a `hidden beast` number, since 2 + 1 + 4 + 30 + 202 + 3 + 423 + 1 = 666.

It is not a de Polignac number, because 2143020234231 - 2⁹ = 2143020233719 is a prime.

It is a super-2 number, since 2×2143020234231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143020234195 and 2143020234204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143020234031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4624276 + ... + 5066553.

Almost surely, 2^{2143020234231} is an apocalyptic number.

2143020234231 is a deficient number, since it is larger than the sum of its proper divisors (952579737649).

2143020234231 is a wasteful number, since it uses less digits than its factorization.

2143020234231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715406 (or 9715403 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 2143020234231 its reverse (1324320203412), we get a palindrome (3467340437643).

The spelling of 2143020234231 in words is "two trillion, one hundred forty-three billion, twenty million, two hundred thirty-four thousand, two hundred thirty-one".