2140203423 has 16 divisors (see below), whose sum is σ = 3022397280. Its totient is φ = 1342457856.

The previous prime is 2140203397. The next prime is 2140203431. The reversal of 2140203423 is 3243020412.

It is not a de Polignac number, because 2140203423 - 2¹⁰ = 2140202399 is a prime.

It is a super-3 number, since 3×2140203423³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2140203423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140203473) 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, 314311 + ... + 321047.

It is an arithmetic number, because the mean of its divisors is an integer number (188899830).

Almost surely, 2^2140203423 is an apocalyptic number.

2140203423 is a deficient number, since it is larger than the sum of its proper divisors (882193857).

2140203423 is a wasteful number, since it uses less digits than its factorization.

2140203423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12986.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2140203423 is about 46262.3326584382. The cubic root of 2140203423 is about 1288.6995734645.

Adding to 2140203423 its reverse (3243020412), we get a palindrome (5383223835).

The spelling of 2140203423 in words is "two billion, one hundred forty million, two hundred three thousand, four hundred twenty-three".