2402135443121 has 8 divisors (see below), whose sum is σ = 2406107319720. Its totient is φ = 2398163822208.

The previous prime is 2402135443073. The next prime is 2402135443129. The reversal of 2402135443121 is 1213445312042.

It can be written as a sum of positive squares in 4 ways, for example, as 40335098896 + 2361800344225 = 200836^2 + 1536815^2 .

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 2402135443121 - 2²⁶ = 2402068334257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2402135443129) 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, 31570295 + ... + 31646291.

It is an arithmetic number, because the mean of its divisors is an integer number (300763414965).

Almost surely, 2^{2402135443121} is an apocalyptic number.

It is an amenable number.

2402135443121 is a deficient number, since it is larger than the sum of its proper divisors (3971876599).

2402135443121 is an equidigital number, since it uses as much as digits as its factorization.

2402135443121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127843.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 2402135443121 in words is "two trillion, four hundred two billion, one hundred thirty-five million, four hundred forty-three thousand, one hundred twenty-one".