23121034015242 has 32 divisors (see below), whose sum is σ = 51539147035200. Its totient is φ = 6871886270208.

The previous prime is 23121034015231. The next prime is 23121034015273. The reversal of 23121034015242 is 24251043012132.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5965177117 + ... + 5965180992.

It is an arithmetic number, because the mean of its divisors is an integer number (1610598344850).

Almost surely, 2^{23121034015242} is an apocalyptic number.

23121034015242 is an abundant number, since it is smaller than the sum of its proper divisors (28418113019958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23121034015242 is a wasteful number, since it uses less digits than its factorization.

23121034015242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11930358150.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 23121034015242 its reverse (24251043012132), we get a palindrome (47372077027374).

The spelling of 23121034015242 in words is "twenty-three trillion, one hundred twenty-one billion, thirty-four million, fifteen thousand, two hundred forty-two".