21023200113 has 8 divisors (see below), whose sum is σ = 28031992800. Its totient is φ = 14014937088.

The previous prime is 21023200091. The next prime is 21023200129. The reversal of 21023200113 is 31100232012.

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

It is not a de Polignac number, because 21023200113 - 2⁶ = 21023200049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21023200092 and 21023200101.

It is not an unprimeable number, because it can be changed into a prime (21023200213) 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, 28048 + ... + 206961.

It is an arithmetic number, because the mean of its divisors is an integer number (3503999100).

Almost surely, 2^21023200113 is an apocalyptic number.

It is an amenable number.

21023200113 is a deficient number, since it is larger than the sum of its proper divisors (7008792687).

21023200113 is a wasteful number, since it uses less digits than its factorization.

21023200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264831.

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

Adding to 21023200113 its reverse (31100232012), we get a palindrome (52123432125).

The spelling of 21023200113 in words is "twenty-one billion, twenty-three million, two hundred thousand, one hundred thirteen".