135121016235 has 8 divisors (see below), whose sum is σ = 216193626000. Its totient is φ = 72064541984.

The previous prime is 135121016183. The next prime is 135121016249. The reversal of 135121016235 is 532610121531.

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 135121016235 - 2⁶ = 135121016171 is a prime.

It is a super-3 number, since 3×135121016235³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4504033860 + ... + 4504033889.

It is an arithmetic number, because the mean of its divisors is an integer number (27024203250).

Almost surely, 2^135121016235 is an apocalyptic number.

135121016235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135121016235 is a deficient number, since it is larger than the sum of its proper divisors (81072609765).

135121016235 is an equidigital number, since it uses as much as digits as its factorization.

135121016235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9008067757.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 135121016235 its reverse (532610121531), we get a palindrome (667731137766).

The spelling of 135121016235 in words is "one hundred thirty-five billion, one hundred twenty-one million, sixteen thousand, two hundred thirty-five".