21000030112023 has 8 divisors (see below), whose sum is σ = 28057535100288. Its totient is φ = 13971272599224.

The previous prime is 21000030111967. The next prime is 21000030112097. The reversal of 21000030112023 is 32021103000012.

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

It is not a de Polignac number, because 21000030112023 - 2¹⁶ = 21000030046487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21000030111993 and 21000030112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000030512023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7186867161 + ... + 7186870082.

It is an arithmetic number, because the mean of its divisors is an integer number (3507191887536).

Almost surely, 2^{21000030112023} is an apocalyptic number.

21000030112023 is a deficient number, since it is larger than the sum of its proper divisors (7057504988265).

21000030112023 is a wasteful number, since it uses less digits than its factorization.

21000030112023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14373737733.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21000030112023 its reverse (32021103000012), we get a palindrome (53021133112035).

The spelling of 21000030112023 in words is "twenty-one trillion, thirty million, one hundred twelve thousand, twenty-three".