21230131411 has 8 divisors (see below), whose sum is σ = 21551138000. Its totient is φ = 20909246688.

The previous prime is 21230131399. The next prime is 21230131427. The reversal of 21230131411 is 11413103212.

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-21230131411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21230131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357625 + ... + 412741.

It is an arithmetic number, because the mean of its divisors is an integer number (2693892250).

Almost surely, 2^21230131411 is an apocalyptic number.

21230131411 is a deficient number, since it is larger than the sum of its proper divisors (321006589).

21230131411 is an equidigital number, since it uses as much as digits as its factorization.

21230131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60933.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21230131411 its reverse (11413103212), we get a palindrome (32643234623).

The spelling of 21230131411 in words is "twenty-one billion, two hundred thirty million, one hundred thirty-one thousand, four hundred eleven".