235635133517121 has 16 divisors (see below), whose sum is σ = 338579788070720. Its totient is φ = 144906848562240.

The previous prime is 235635133517107. The next prime is 235635133517131. The reversal of 235635133517121 is 121715331536532.

It is a happy number.

It is not a de Polignac number, because 235635133517121 - 2¹⁷ = 235635133386049 is a prime.

It is a super-2 number, since 2×235635133517121² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235635133517131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2070514210 + ... + 2070628011.

It is an arithmetic number, because the mean of its divisors is an integer number (21161236754420).

Almost surely, 2^{235635133517121} is an apocalyptic number.

It is an amenable number.

235635133517121 is a deficient number, since it is larger than the sum of its proper divisors (102944654553599).

235635133517121 is a wasteful number, since it uses less digits than its factorization.

235635133517121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141143696.

The product of its digits is 1701000, while the sum is 48.

The spelling of 235635133517121 in words is "two hundred thirty-five trillion, six hundred thirty-five billion, one hundred thirty-three million, five hundred seventeen thousand, one hundred twenty-one".