135415511321 has 8 divisors (see below), whose sum is σ = 149615092224. Its totient is φ = 121908592960.

The previous prime is 135415511317. The next prime is 135415511327. The reversal of 135415511321 is 123115514531.

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 135415511321 - 2² = 135415511317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135415511327) 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, 173165225 + ... + 173166006.

It is an arithmetic number, because the mean of its divisors is an integer number (18701886528).

Almost surely, 2^135415511321 is an apocalyptic number.

It is an amenable number.

135415511321 is a deficient number, since it is larger than the sum of its proper divisors (14199580903).

135415511321 is a wasteful number, since it uses less digits than its factorization.

135415511321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346331271.

The product of its digits is 9000, while the sum is 32.

It can be divided in two parts, 13541551 and 1321, that multiplied together give a palindrome (17888388871).

The spelling of 135415511321 in words is "one hundred thirty-five billion, four hundred fifteen million, five hundred eleven thousand, three hundred twenty-one".