23331440401021 has 8 divisors (see below), whose sum is σ = 23617795383000. Its totient is φ = 23046815661120.

The previous prime is 23331440400997. The next prime is 23331440401051. The reversal of 23331440401021 is 12010404413332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1682092272025 + 21649348128996 = 1296955^2 + 4652886^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23331440401021 - 2³⁷ = 23194001447549 is a prime.

It is a super-2 number, since 2×23331440401021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23331440401051) 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, 432533386 + ... + 432587323.

It is an arithmetic number, because the mean of its divisors is an integer number (2952224422875).

Almost surely, 2^{23331440401021} is an apocalyptic number.

It is an amenable number.

23331440401021 is a deficient number, since it is larger than the sum of its proper divisors (286354981979).

23331440401021 is a wasteful number, since it uses less digits than its factorization.

23331440401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865121039.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 23331440401021 its reverse (12010404413332), we get a palindrome (35341844814353).

The spelling of 23331440401021 in words is "twenty-three trillion, three hundred thirty-one billion, four hundred forty million, four hundred one thousand, twenty-one".