135312230401 has 4 divisors (see below), whose sum is σ = 135314876592. Its totient is φ = 135309584212.

The previous prime is 135312230399. The next prime is 135312230437. The reversal of 135312230401 is 104032213531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104032213531 = 1277 ⋅81466103.

It is a cyclic number.

It is not a de Polignac number, because 135312230401 - 2¹ = 135312230399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135312230461) 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, 1244851 + ... + 1349176.

It is an arithmetic number, because the mean of its divisors is an integer number (33828719148).

Almost surely, 2^135312230401 is an apocalyptic number.

It is an amenable number.

135312230401 is a deficient number, since it is larger than the sum of its proper divisors (2646191).

135312230401 is an equidigital number, since it uses as much as digits as its factorization.

135312230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646190.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 135312230401 its reverse (104032213531), we get a palindrome (239344443932).

The spelling of 135312230401 in words is "one hundred thirty-five billion, three hundred twelve million, two hundred thirty thousand, four hundred one".