20212132231321 has 8 divisors (see below), whose sum is σ = 20512326377088. Its totient is φ = 19912369092000.

The previous prime is 20212132231301. The next prime is 20212132231373. The reversal of 20212132231321 is 12313223121202.

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-20212132231321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212132231301) 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, 107657125 + ... + 107844706.

It is an arithmetic number, because the mean of its divisors is an integer number (2564040797136).

Almost surely, 2^{20212132231321} is an apocalyptic number.

It is an amenable number.

20212132231321 is a deficient number, since it is larger than the sum of its proper divisors (300194145767).

20212132231321 is a wasteful number, since it uses less digits than its factorization.

20212132231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215503223.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 20212132231321 its reverse (12313223121202), we get a palindrome (32525355352523).

The spelling of 20212132231321 in words is "twenty trillion, two hundred twelve billion, one hundred thirty-two million, two hundred thirty-one thousand, three hundred twenty-one".