2355121046321 has 8 divisors (see below), whose sum is σ = 2404271577960. Its totient is φ = 2306145117952.

The previous prime is 2355121046309. The next prime is 2355121046353. The reversal of 2355121046321 is 1236401215532.

It can be written as a sum of positive squares in 4 ways, for example, as 608031895696 + 1747089150625 = 779764^2 + 1321775^2 .

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 2355121046321 - 2¹⁰ = 2355121045297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2355151046321) 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, 43623560 + ... + 43677513.

It is an arithmetic number, because the mean of its divisors is an integer number (300533947245).

Almost surely, 2^{2355121046321} is an apocalyptic number.

It is an amenable number.

2355121046321 is a deficient number, since it is larger than the sum of its proper divisors (49150531639).

2355121046321 is an equidigital number, since it uses as much as digits as its factorization.

2355121046321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87301635.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 2355121046321 in words is "two trillion, three hundred fifty-five billion, one hundred twenty-one million, forty-six thousand, three hundred twenty-one".