21034131411 has 8 divisors (see below), whose sum is σ = 28049299344. Its totient is φ = 14020858880.

The previous prime is 21034131401. The next prime is 21034131479. The reversal of 21034131411 is 11413143012.

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 21034131411 - 2⁵ = 21034131379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21034131401) 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, 447750 + ... + 492491.

It is an arithmetic number, because the mean of its divisors is an integer number (3506162418).

Almost surely, 2^21034131411 is an apocalyptic number.

21034131411 is a deficient number, since it is larger than the sum of its proper divisors (7015167933).

21034131411 is an equidigital number, since it uses as much as digits as its factorization.

21034131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947701.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21034131411 its reverse (11413143012), we get a palindrome (32447274423).

The spelling of 21034131411 in words is "twenty-one billion, thirty-four million, one hundred thirty-one thousand, four hundred eleven".