21113011131233 has 8 divisors (see below), whose sum is σ = 25548517671552. Its totient is φ = 17032345114176.

The previous prime is 21113011131227. The next prime is 21113011131253. The reversal of 21113011131233 is 33213111031112.

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

It is not a de Polignac number, because 21113011131233 - 2⁸ = 21113011130977 is a prime.

It is a super-5 number, since 5×21113011131233⁵ (a number of 68 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21113011131199 and 21113011131208.

It is not an unprimeable number, because it can be changed into a prime (21113011131253) 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, 88710130685 + ... + 88710130922.

It is an arithmetic number, because the mean of its divisors is an integer number (3193564708944).

Almost surely, 2^{21113011131233} is an apocalyptic number.

It is an amenable number.

21113011131233 is a deficient number, since it is larger than the sum of its proper divisors (4435506540319).

21113011131233 is a wasteful number, since it uses less digits than its factorization.

21113011131233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177420261631.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 21113011131233 its reverse (33213111031112), we get a palindrome (54326122162345).

The spelling of 21113011131233 in words is "twenty-one trillion, one hundred thirteen billion, eleven million, one hundred thirty-one thousand, two hundred thirty-three".