342540040253 has 2 divisors, whose sum is σ = 342540040254. Its totient is φ = 342540040252.

The previous prime is 342540040229. The next prime is 342540040273. The reversal of 342540040253 is 352040045243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192428736889 + 150111303364 = 438667^2 + 387442^2 .

It is a cyclic number.

It is not a de Polignac number, because 342540040253 - 2⁶ = 342540040189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342540040273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171270020126 + 171270020127.

It is an arithmetic number, because the mean of its divisors is an integer number (171270020127).

Almost surely, 2^342540040253 is an apocalyptic number.

It is an amenable number.

342540040253 is a deficient number, since it is larger than the sum of its proper divisors (1).

342540040253 is an equidigital number, since it uses as much as digits as its factorization.

342540040253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 342540040253 its reverse (352040045243), we get a palindrome (694580085496).

The spelling of 342540040253 in words is "three hundred forty-two billion, five hundred forty million, forty thousand, two hundred fifty-three".