42501044121 has 16 divisors (see below), whose sum is σ = 59743698240. Its totient is φ = 26800865280.

The previous prime is 42501044093. The next prime is 42501044149. The reversal of 42501044121 is 12144010524.

It is an interprime number because it is at equal distance from previous prime (42501044093) and next prime (42501044149).

It is not a de Polignac number, because 42501044121 - 2⁶ = 42501044057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42501044091 and 42501044100.

It is not an unprimeable number, because it can be changed into a prime (42501044171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545080 + ... + 618153.

It is an arithmetic number, because the mean of its divisors is an integer number (3733981140).

Almost surely, 2^42501044121 is an apocalyptic number.

It is an amenable number.

42501044121 is a deficient number, since it is larger than the sum of its proper divisors (17242654119).

42501044121 is a wasteful number, since it uses less digits than its factorization.

42501044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163896.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 42501044121 its reverse (12144010524), we get a palindrome (54645054645).

The spelling of 42501044121 in words is "forty-two billion, five hundred one million, forty-four thousand, one hundred twenty-one".