2143000123 has 16 divisors (see below), whose sum is σ = 2365355520. Its totient is φ = 1925308000.

The previous prime is 2143000103. The next prime is 2143000133. The reversal of 2143000123 is 3210003412.

It is a happy number.

It is not a de Polignac number, because 2143000123 - 2²¹ = 2140902971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2143000097 and 2143000106.

It is not an unprimeable number, because it can be changed into a prime (2143000103) 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, 730686 + ... + 733612.

It is an arithmetic number, because the mean of its divisors is an integer number (147834720).

Almost surely, 2^2143000123 is an apocalyptic number.

2143000123 is a deficient number, since it is larger than the sum of its proper divisors (222355397).

2143000123 is a wasteful number, since it uses less digits than its factorization.

2143000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2143000123 is about 46292.5493249184. The cubic root of 2143000123 is about 1289.2606630186.

Adding to 2143000123 its reverse (3210003412), we get a palindrome (5353003535).

The spelling of 2143000123 in words is "two billion, one hundred forty-three million, one hundred twenty-three", and thus it is an aban number.