23642021365142 has 16 divisors (see below), whose sum is σ = 38257566207552. Its totient is φ = 10915739053440.

The previous prime is 23642021365121. The next prime is 23642021365147. The reversal of 23642021365142 is 24156312024632.

It is a self number, because there is not a number n which added to its sum of digits gives 23642021365142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23642021365147) 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, 6559937534 + ... + 6559941137.

It is an arithmetic number, because the mean of its divisors is an integer number (2391097887972).

Almost surely, 2^{23642021365142} is an apocalyptic number.

23642021365142 is a deficient number, since it is larger than the sum of its proper divisors (14615544842410).

23642021365142 is a wasteful number, since it uses less digits than its factorization.

23642021365142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13119878743.

The product of its (nonzero) digits is 414720, while the sum is 41.

Adding to 23642021365142 its reverse (24156312024632), we get a palindrome (47798333389774).

The spelling of 23642021365142 in words is "twenty-three trillion, six hundred forty-two billion, twenty-one million, three hundred sixty-five thousand, one hundred forty-two".