135456304203 has 24 divisors (see below), whose sum is σ = 216370230960. Its totient is φ = 80970140160.

The previous prime is 135456304201. The next prime is 135456304219. The reversal of 135456304203 is 302403654531.

135456304203 is a `hidden beast` number, since 1 + 3 + 54 + 563 + 0 + 42 + 0 + 3 = 666.

It is not a de Polignac number, because 135456304203 - 2¹ = 135456304201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135456304201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9364318 + ... + 9378771.

It is an arithmetic number, because the mean of its divisors is an integer number (9015426290).

Almost surely, 2^135456304203 is an apocalyptic number.

135456304203 is a deficient number, since it is larger than the sum of its proper divisors (80913926757).

135456304203 is a wasteful number, since it uses less digits than its factorization.

135456304203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18743179 (or 18743176 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 135456304203 its reverse (302403654531), we get a palindrome (437859958734).

The spelling of 135456304203 in words is "one hundred thirty-five billion, four hundred fifty-six million, three hundred four thousand, two hundred three".