21100011130023 has 8 divisors (see below), whose sum is σ = 32152397912448. Its totient is φ = 12057149217144.

The previous prime is 21100011129941. The next prime is 21100011130043. The reversal of 21100011130023 is 32003111000112.

It is a happy number.

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

It is not a de Polignac number, because 21100011130023 - 2⁸ = 21100011129767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21100011129984 and 21100011130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100011130043) 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, 502381217361 + ... + 502381217402.

It is an arithmetic number, because the mean of its divisors is an integer number (4019049739056).

Almost surely, 2^{21100011130023} is an apocalyptic number.

21100011130023 is a deficient number, since it is larger than the sum of its proper divisors (11052386782425).

21100011130023 is a wasteful number, since it uses less digits than its factorization.

21100011130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004762434773.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 21100011130023 its reverse (32003111000112), we get a palindrome (53103122130135).

The spelling of 21100011130023 in words is "twenty-one trillion, one hundred billion, eleven million, one hundred thirty thousand, twenty-three".