23331123021 has 16 divisors (see below), whose sum is σ = 31871528640. Its totient is φ = 15172510080.

The previous prime is 23331122987. The next prime is 23331123029. The reversal of 23331123021 is 12032113332.

It is not a de Polignac number, because 23331123021 - 2¹⁵ = 23331090253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331123029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1649646 + ... + 1663728.

It is an arithmetic number, because the mean of its divisors is an integer number (1991970540).

Almost surely, 2^23331123021 is an apocalyptic number.

It is an amenable number.

23331123021 is a deficient number, since it is larger than the sum of its proper divisors (8540405619).

23331123021 is a wasteful number, since it uses less digits than its factorization.

23331123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27596.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23331123021 its reverse (12032113332), we get a palindrome (35363236353).

The spelling of 23331123021 in words is "twenty-three billion, three hundred thirty-one million, one hundred twenty-three thousand, twenty-one".