21031130030411 has 4 divisors (see below), whose sum is σ = 21756341410800. Its totient is φ = 20305918650024.

The previous prime is 21031130030401. The next prime is 21031130030413. The reversal of 21031130030411 is 11403003113012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21031130030411 - 2⁴² = 16633083519307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21031130030413) 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 3 ways as a sum of consecutive naturals, for example, 362605690151 + ... + 362605690208.

It is an arithmetic number, because the mean of its divisors is an integer number (5439085352700).

Almost surely, 2^{21031130030411} is an apocalyptic number.

21031130030411 is a deficient number, since it is larger than the sum of its proper divisors (725211380389).

21031130030411 is an equidigital number, since it uses as much as digits as its factorization.

21031130030411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725211380388.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21031130030411 its reverse (11403003113012), we get a palindrome (32434133143423).

The spelling of 21031130030411 in words is "twenty-one trillion, thirty-one billion, one hundred thirty million, thirty thousand, four hundred eleven".