21112331023013 has 8 divisors (see below), whose sum is σ = 21249629520000. Its totient is φ = 20975440546368.

The previous prime is 21112331022971. The next prime is 21112331023061. The reversal of 21112331023013 is 31032013321112.

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 21112331023013 - 2²⁸ = 21112062587557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21112331023013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112331023073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101901263 + ... + 102108236.

It is an arithmetic number, because the mean of its divisors is an integer number (2656203690000).

Almost surely, 2^{21112331023013} is an apocalyptic number.

It is an amenable number.

21112331023013 is a deficient number, since it is larger than the sum of its proper divisors (137298496987).

21112331023013 is a wasteful number, since it uses less digits than its factorization.

21112331023013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204010171.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21112331023013 its reverse (31032013321112), we get a palindrome (52144344344125).

The spelling of 21112331023013 in words is "twenty-one trillion, one hundred twelve billion, three hundred thirty-one million, twenty-three thousand, thirteen".