202540142323 has 8 divisors (see below), whose sum is σ = 215288725392. Its totient is φ = 189884276736.

The previous prime is 202540142303. The next prime is 202540142327. The reversal of 202540142323 is 323241045202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202540142323 - 2²⁹ = 202003271411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202540142291 and 202540142300.

It is not an unprimeable number, because it can be changed into a prime (202540142327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23174865 + ... + 23183602.

It is an arithmetic number, because the mean of its divisors is an integer number (26911090674).

Almost surely, 2^202540142323 is an apocalyptic number.

202540142323 is a deficient number, since it is larger than the sum of its proper divisors (12748583069).

202540142323 is a wasteful number, since it uses less digits than its factorization.

202540142323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46358741.

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

Adding to 202540142323 its reverse (323241045202), we get a palindrome (525781187525).

The spelling of 202540142323 in words is "two hundred two billion, five hundred forty million, one hundred forty-two thousand, three hundred twenty-three".