2140445323 has 4 divisors (see below), whose sum is σ = 2253100360. Its totient is φ = 2027790288.

The previous prime is 2140445291. The next prime is 2140445339. The reversal of 2140445323 is 3235440412.

It is a happy number.

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 2140445323 - 2⁵ = 2140445291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140445291 and 2140445300.

It is not an unprimeable number, because it can be changed into a prime (2140445123) 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, 56327490 + ... + 56327527.

It is an arithmetic number, because the mean of its divisors is an integer number (563275090).

Almost surely, 2^2140445323 is an apocalyptic number.

2140445323 is a deficient number, since it is larger than the sum of its proper divisors (112655037).

2140445323 is a wasteful number, since it uses less digits than its factorization.

2140445323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112655036.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 2140445323 is about 46264.9470225569. The cubic root of 2140445323 is about 1288.7481240959.

Adding to 2140445323 its reverse (3235440412), we get a palindrome (5375885735).

The spelling of 2140445323 in words is "two billion, one hundred forty million, four hundred forty-five thousand, three hundred twenty-three".