23015010021 has 8 divisors (see below), whose sum is σ = 30701827104. Its totient is φ = 15335766480.

The previous prime is 23015010019. The next prime is 23015010037. The reversal of 23015010021 is 12001051032.

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

It is not a de Polignac number, because 23015010021 - 2¹ = 23015010019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015010001) 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, 1886290 + ... + 1898451.

It is an arithmetic number, because the mean of its divisors is an integer number (3837728388).

Almost surely, 2^23015010021 is an apocalyptic number.

It is an amenable number.

23015010021 is a deficient number, since it is larger than the sum of its proper divisors (7686817083).

23015010021 is a wasteful number, since it uses less digits than its factorization.

23015010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786771.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 23015010021 its reverse (12001051032), we get a palindrome (35016061053).

The spelling of 23015010021 in words is "twenty-three billion, fifteen million, ten thousand, twenty-one".