2162135140321 has 16 divisors (see below), whose sum is σ = 2433577179600. Its totient is φ = 1907129806848.

The previous prime is 2162135140309. The next prime is 2162135140331. The reversal of 2162135140321 is 1230415312612.

It can be written as a sum of positive squares in 8 ways, for example, as 29480890000 + 2132654250321 = 171700^2 + 1460361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162135140321 - 2³³ = 2153545205729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162135140331) 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, 29525836 + ... + 29598973.

It is an arithmetic number, because the mean of its divisors is an integer number (152098573725).

Almost surely, 2^{2162135140321} is an apocalyptic number.

It is an amenable number.

2162135140321 is a deficient number, since it is larger than the sum of its proper divisors (271442039279).

2162135140321 is a wasteful number, since it uses less digits than its factorization.

2162135140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59124948.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 2162135140321 in words is "two trillion, one hundred sixty-two billion, one hundred thirty-five million, one hundred forty thousand, three hundred twenty-one".