163535233312121 has 16 divisors (see below), whose sum is σ = 182729754892608. Its totient is φ = 145068764702400.

The previous prime is 163535233312063. The next prime is 163535233312189. The reversal of 163535233312121 is 121213332535361.

It is not a de Polignac number, because 163535233312121 - 2¹⁴ = 163535233295737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163535233312721) 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, 168831686 + ... + 169797551.

It is an arithmetic number, because the mean of its divisors is an integer number (11420609680788).

Almost surely, 2^{163535233312121} is an apocalyptic number.

163535233312121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163535233312121 is a deficient number, since it is larger than the sum of its proper divisors (19194521580487).

163535233312121 is a wasteful number, since it uses less digits than its factorization.

163535233312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338630312.

The product of its digits is 291600, while the sum is 41.

Adding to 163535233312121 its reverse (121213332535361), we get a palindrome (284748565847482).

The spelling of 163535233312121 in words is "one hundred sixty-three trillion, five hundred thirty-five billion, two hundred thirty-three million, three hundred twelve thousand, one hundred twenty-one".