23151344331021 has 8 divisors (see below), whose sum is σ = 31000941766080. Its totient is φ = 15367988224992.

The previous prime is 23151344331007. The next prime is 23151344331029. The reversal of 23151344331021 is 12013344315132.

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

It is not a de Polignac number, because 23151344331021 - 2¹³ = 23151344322829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23151344331029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16560331441 + ... + 16560332838.

It is an arithmetic number, because the mean of its divisors is an integer number (3875117720760).

Almost surely, 2^{23151344331021} is an apocalyptic number.

It is an amenable number.

23151344331021 is a deficient number, since it is larger than the sum of its proper divisors (7849597435059).

23151344331021 is a wasteful number, since it uses less digits than its factorization.

23151344331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33120664515.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 23151344331021 its reverse (12013344315132), we get a palindrome (35164688646153).

The spelling of 23151344331021 in words is "twenty-three trillion, one hundred fifty-one billion, three hundred forty-four million, three hundred thirty-one thousand, twenty-one".