21100303211431 has 8 divisors (see below), whose sum is σ = 21200443489584. Its totient is φ = 21000164243520.

The previous prime is 21100303211423. The next prime is 21100303211443. The reversal of 21100303211431 is 13411230300112.

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

It is a cyclic number.

It is not a de Polignac number, because 21100303211431 - 2³ = 21100303211423 is a prime.

It is a super-2 number, since 2×21100303211431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100303217431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50951355 + ... + 51363811.

It is an arithmetic number, because the mean of its divisors is an integer number (2650055436198).

Almost surely, 2^{21100303211431} is an apocalyptic number.

21100303211431 is a deficient number, since it is larger than the sum of its proper divisors (100140278153).

21100303211431 is a wasteful number, since it uses less digits than its factorization.

21100303211431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655121.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21100303211431 its reverse (13411230300112), we get a palindrome (34511533511543).

The spelling of 21100303211431 in words is "twenty-one trillion, one hundred billion, three hundred three million, two hundred eleven thousand, four hundred thirty-one".