23021010011 has 4 divisors (see below), whose sum is σ = 23038843224. Its totient is φ = 23003176800.

The previous prime is 23021009989. The next prime is 23021010013. The reversal of 23021010011 is 11001012032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23021010011 - 2²⁶ = 22953901147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021009974 and 23021010001.

It is not an unprimeable number, because it can be changed into a prime (23021010013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8914670 + ... + 8917251.

It is an arithmetic number, because the mean of its divisors is an integer number (5759710806).

Almost surely, 2^23021010011 is an apocalyptic number.

23021010011 is a deficient number, since it is larger than the sum of its proper divisors (17833213).

23021010011 is a wasteful number, since it uses less digits than its factorization.

23021010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17833212.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 23021010011 its reverse (11001012032), we get a palindrome (34022022043).

The spelling of 23021010011 in words is "twenty-three billion, twenty-one million, ten thousand, eleven".