30002120131321 has 4 divisors (see below), whose sum is σ = 32309975526052. Its totient is φ = 27694264736592.

The previous prime is 30002120131297. The next prime is 30002120131343. The reversal of 30002120131321 is 12313102120003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12707542375696 + 17294577755625 = 3564764^2 + 4158675^2 .

It is a cyclic number.

It is not a de Polignac number, because 30002120131321 - 2⁹ = 30002120130809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30002120131351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1153927697346 + ... + 1153927697371.

It is an arithmetic number, because the mean of its divisors is an integer number (8077493881513).

Almost surely, 2^{30002120131321} is an apocalyptic number.

It is an amenable number.

30002120131321 is a deficient number, since it is larger than the sum of its proper divisors (2307855394731).

30002120131321 is a wasteful number, since it uses less digits than its factorization.

30002120131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307855394730.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30002120131321 its reverse (12313102120003), we get a palindrome (42315222251324).

The spelling of 30002120131321 in words is "thirty trillion, two billion, one hundred twenty million, one hundred thirty-one thousand, three hundred twenty-one".