21031314234411 has 8 divisors (see below), whose sum is σ = 30198810182800. Its totient is φ = 12942347221152.

The previous prime is 21031314234389. The next prime is 21031314234421. The reversal of 21031314234411 is 11443241313012.

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

It is not a de Polignac number, because 21031314234411 - 2¹⁸ = 21031313972267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21031314234421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269632233736 + ... + 269632233813.

It is an arithmetic number, because the mean of its divisors is an integer number (3774851272850).

Almost surely, 2^{21031314234411} is an apocalyptic number.

21031314234411 is a deficient number, since it is larger than the sum of its proper divisors (9167495948389).

21031314234411 is a wasteful number, since it uses less digits than its factorization.

21031314234411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539264467565.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 21031314234411 its reverse (11443241313012), we get a palindrome (32474555547423).

The spelling of 21031314234411 in words is "twenty-one trillion, thirty-one billion, three hundred fourteen million, two hundred thirty-four thousand, four hundred eleven".