23321215142 has 4 divisors (see below), whose sum is σ = 34981822716. Its totient is φ = 11660607570.

The previous prime is 23321215129. The next prime is 23321215187. The reversal of 23321215142 is 24151212332.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830303784 + ... + 5830303787.

It is an arithmetic number, because the mean of its divisors is an integer number (8745455679).

Almost surely, 2^23321215142 is an apocalyptic number.

23321215142 is a deficient number, since it is larger than the sum of its proper divisors (11660607574).

23321215142 is a wasteful number, since it uses less digits than its factorization.

23321215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660607573.

The product of its digits is 2880, while the sum is 26.

Adding to 23321215142 its reverse (24151212332), we get a palindrome (47472427474).

The spelling of 23321215142 in words is "twenty-three billion, three hundred twenty-one million, two hundred fifteen thousand, one hundred forty-two".