42052120121361 has 96 divisors (see below), whose sum is σ = 66806442233856. Its totient is φ = 23453614800000.

The previous prime is 42052120121359. The next prime is 42052120121369. The reversal of 42052120121361 is 16312102125024.

It is not a de Polignac number, because 42052120121361 - 2¹ = 42052120121359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42052120121369) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5322375511 + ... + 5322383411.

It is an arithmetic number, because the mean of its divisors is an integer number (695900439936).

Almost surely, 2^{42052120121361} is an apocalyptic number.

It is an amenable number.

42052120121361 is a deficient number, since it is larger than the sum of its proper divisors (24754322112495).

42052120121361 is a wasteful number, since it uses less digits than its factorization.

42052120121361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13043 (or 13036 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 42052120121361 its reverse (16312102125024), we get a palindrome (58364222246385).

The spelling of 42052120121361 in words is "forty-two trillion, fifty-two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred sixty-one".