2143253223 has 32 divisors (see below), whose sum is σ = 3377203200. Its totient is φ = 1338691968.

The previous prime is 2143253221. The next prime is 2143253261. The reversal of 2143253223 is 3223523412.

2143253223 is a `hidden beast` number, since 2 + 1 + 432 + 5 + 3 + 223 = 666.

It is not a de Polignac number, because 2143253223 - 2¹ = 2143253221 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143253221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91888 + ... + 112826.

It is an arithmetic number, because the mean of its divisors is an integer number (105537600).

Almost surely, 2^2143253223 is an apocalyptic number.

2143253223 is a deficient number, since it is larger than the sum of its proper divisors (1233949977).

2143253223 is a wasteful number, since it uses less digits than its factorization.

2143253223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21188 (or 21182 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 2143253223 is about 46295.2829454578. The cubic root of 2143253223 is about 1289.3114172587.

Adding to 2143253223 its reverse (3223523412), we get a palindrome (5366776635).

The spelling of 2143253223 in words is "two billion, one hundred forty-three million, two hundred fifty-three thousand, two hundred twenty-three".