21111321131299 has 8 divisors (see below), whose sum is σ = 24143760984320. Its totient is φ = 18083015486856.

The previous prime is 21111321131297. The next prime is 21111321131311. The reversal of 21111321131299 is 99213112311112.

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 21111321131299 - 2¹ = 21111321131297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21111321131297) 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, 1033541199 + ... + 1033561624.

It is an arithmetic number, because the mean of its divisors is an integer number (3017970123040).

Almost surely, 2^{21111321131299} is an apocalyptic number.

21111321131299 is a deficient number, since it is larger than the sum of its proper divisors (3032439853021).

21111321131299 is a wasteful number, since it uses less digits than its factorization.

21111321131299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067104289.

The product of its digits is 5832, while the sum is 37.

The spelling of 21111321131299 in words is "twenty-one trillion, one hundred eleven billion, three hundred twenty-one million, one hundred thirty-one thousand, two hundred ninety-nine".