20212313323121 has 8 divisors (see below), whose sum is σ = 20292365598720. Its totient is φ = 20132271940608.

The previous prime is 20212313323039. The next prime is 20212313323187. The reversal of 20212313323121 is 12132331321202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212313323121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212313343121) 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, 1005200 + ... + 6437006.

It is an arithmetic number, because the mean of its divisors is an integer number (2536545699840).

Almost surely, 2^{20212313323121} is an apocalyptic number.

It is an amenable number.

20212313323121 is a deficient number, since it is larger than the sum of its proper divisors (80052275599).

20212313323121 is a wasteful number, since it uses less digits than its factorization.

20212313323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5446543.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 20212313323121 its reverse (12132331321202), we get a palindrome (32344644644323).

The spelling of 20212313323121 in words is "twenty trillion, two hundred twelve billion, three hundred thirteen million, three hundred twenty-three thousand, one hundred twenty-one".