21131320131101 has 8 divisors (see below), whose sum is σ = 21789422172000. Its totient is φ = 20482825419472.

The previous prime is 21131320131001. The next prime is 21131320131109. The reversal of 21131320131101 is 10113102313112.

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-21131320131101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21131320131109) 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, 2401827851 + ... + 2401836648.

It is an arithmetic number, because the mean of its divisors is an integer number (2723677771500).

Almost surely, 2^{21131320131101} is an apocalyptic number.

It is an amenable number.

21131320131101 is a deficient number, since it is larger than the sum of its proper divisors (658102040899).

21131320131101 is an equidigital number, since it uses as much as digits as its factorization.

21131320131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4803664635.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 21131320131101 its reverse (10113102313112), we get a palindrome (31244422444213).

The spelling of 21131320131101 in words is "twenty-one trillion, one hundred thirty-one billion, three hundred twenty million, one hundred thirty-one thousand, one hundred one".