342400135203 has 40 divisors (see below), whose sum is σ = 592563829088. Its totient is φ = 192976960896.

The previous prime is 342400135201. The next prime is 342400135241. The reversal of 342400135203 is 302531004243.

342400135203 is a `hidden beast` number, since 3 + 42 + 400 + 13 + 5 + 203 = 666.

It is not a de Polignac number, because 342400135203 - 2¹ = 342400135201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (342400135201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4094776 + ... + 4177557.

Almost surely, 2^342400135203 is an apocalyptic number.

342400135203 is a deficient number, since it is larger than the sum of its proper divisors (250163693885).

342400135203 is an equidigital number, since it uses as much as digits as its factorization.

342400135203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272425 (or 8272416 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 342400135203 its reverse (302531004243), we get a palindrome (644931139446).

The spelling of 342400135203 in words is "three hundred forty-two billion, four hundred million, one hundred thirty-five thousand, two hundred three".