121202020301321 has 8 divisors (see below), whose sum is σ = 121393338633000. Its totient is φ = 121010846310400.

The previous prime is 121202020301279. The next prime is 121202020301357. The reversal of 121202020301321 is 123103020202121.

It can be written as a sum of positive squares in 4 ways, for example, as 117052080921721 + 4149939379600 = 10819061^2 + 2037140^2 .

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 121202020301321 - 2²² = 121202016107017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121202020301293 and 121202020301302.

It is not an unprimeable number, because it can be changed into a prime (121202020301221) 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, 34404416 + ... + 37763313.

It is an arithmetic number, because the mean of its divisors is an integer number (15174167329125).

Almost surely, 2^{121202020301321} is an apocalyptic number.

It is an amenable number.

121202020301321 is a deficient number, since it is larger than the sum of its proper divisors (191318331679).

121202020301321 is a wasteful number, since it uses less digits than its factorization.

121202020301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72170379.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121202020301321 its reverse (123103020202121), we get a palindrome (244305040503442).

The spelling of 121202020301321 in words is "one hundred twenty-one trillion, two hundred two billion, twenty million, three hundred one thousand, three hundred twenty-one".