2140142323 has 4 divisors (see below), whose sum is σ = 2334700728. Its totient is φ = 1945583920.

The previous prime is 2140142317. The next prime is 2140142339. The reversal of 2140142323 is 3232410412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2140142323 - 2⁹ = 2140141811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140142294 and 2140142303.

It is not an unprimeable number, because it can be changed into a prime (2140142363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97279186 + ... + 97279207.

It is an arithmetic number, because the mean of its divisors is an integer number (583675182).

Almost surely, 2^2140142323 is an apocalyptic number.

2140142323 is a deficient number, since it is larger than the sum of its proper divisors (194558405).

2140142323 is a wasteful number, since it uses less digits than its factorization.

2140142323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194558404.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2140142323 is about 46261.6722892720. The cubic root of 2140142323 is about 1288.6873097870.

Adding to 2140142323 its reverse (3232410412), we get a palindrome (5372552735).

The spelling of 2140142323 in words is "two billion, one hundred forty million, one hundred forty-two thousand, three hundred twenty-three".