121645534523233 has 8 divisors (see below), whose sum is σ = 139023741744000. Its totient is φ = 104267395731840.

The previous prime is 121645534523213. The next prime is 121645534523239. The reversal of 121645534523233 is 332325435546121.

It is a happy number.

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 121645534523233 - 2¹³ = 121645534515041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121645534523239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13239733 + ... + 20459266.

It is an arithmetic number, because the mean of its divisors is an integer number (17377967718000).

Almost surely, 2^{121645534523233} is an apocalyptic number.

It is an amenable number.

121645534523233 is a deficient number, since it is larger than the sum of its proper divisors (17378207220767).

121645534523233 is an equidigital number, since it uses as much as digits as its factorization.

121645534523233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34214687.

The product of its digits is 7776000, while the sum is 49.

The spelling of 121645534523233 in words is "one hundred twenty-one trillion, six hundred forty-five billion, five hundred thirty-four million, five hundred twenty-three thousand, two hundred thirty-three".