23121224032402 has 16 divisors (see below), whose sum is σ = 37270032772320. Its totient is φ = 10718179357248.

The previous prime is 23121224032301. The next prime is 23121224032409. The reversal of 23121224032402 is 20423042212132.

It is a super-2 number, since 2×23121224032402² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23121224032409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5074893252 + ... + 5074897807.

It is an arithmetic number, because the mean of its divisors is an integer number (2329377048270).

Almost surely, 2^{23121224032402} is an apocalyptic number.

23121224032402 is a deficient number, since it is larger than the sum of its proper divisors (14148808739918).

23121224032402 is a wasteful number, since it uses less digits than its factorization.

23121224032402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10149791145.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 23121224032402 its reverse (20423042212132), we get a palindrome (43544266244534).

The spelling of 23121224032402 in words is "twenty-three trillion, one hundred twenty-one billion, two hundred twenty-four million, thirty-two thousand, four hundred two".