21113100330331 has 8 divisors (see below), whose sum is σ = 21229873674464. Its totient is φ = 20996328375360.

The previous prime is 21113100330299. The next prime is 21113100330379. The reversal of 21113100330331 is 13303300131112.

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 21113100330331 - 2⁵ = 21113100330299 is a prime.

It is a super-2 number, since 2×21113100330331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113100330031) 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, 51333655 + ... + 51743311.

It is an arithmetic number, because the mean of its divisors is an integer number (2653734209308).

Almost surely, 2^{21113100330331} is an apocalyptic number.

21113100330331 is a deficient number, since it is larger than the sum of its proper divisors (116773344133).

21113100330331 is a wasteful number, since it uses less digits than its factorization.

21113100330331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694581.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 21113100330331 its reverse (13303300131112), we get a palindrome (34416400461443).

The spelling of 21113100330331 in words is "twenty-one trillion, one hundred thirteen billion, one hundred million, three hundred thirty thousand, three hundred thirty-one".