23333100021 has 48 divisors (see below), whose sum is σ = 42526149120. Its totient is φ = 11975024160.

The previous prime is 23333100001. The next prime is 23333100029. The reversal of 23333100021 is 12000133332.

23333100021 is a `hidden beast` number, since 2 + 333 + 310 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 23333100021 - 2¹⁴ = 23333083637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23333099967 and 23333100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23333100029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145311 + ... + 260348.

It is an arithmetic number, because the mean of its divisors is an integer number (885961440).

Almost surely, 2^23333100021 is an apocalyptic number.

23333100021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23333100021 is a deficient number, since it is larger than the sum of its proper divisors (19193049099).

23333100021 is a wasteful number, since it uses less digits than its factorization.

23333100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405766 (or 405763 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 23333100021 its reverse (12000133332), we get a palindrome (35333233353).

The spelling of 23333100021 in words is "twenty-three billion, three hundred thirty-three million, one hundred thousand, twenty-one".