42535001121 has 16 divisors (see below), whose sum is σ = 57576800064. Its totient is φ = 27925185024.

The previous prime is 42535001087. The next prime is 42535001153. The reversal of 42535001121 is 12110053524.

It is a happy number.

It is not a de Polignac number, because 42535001121 - 2¹⁸ = 42534738977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42535001091 and 42535001100.

It is not an unprimeable number, because it can be changed into a prime (42535001321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692745 + ... + 751641.

It is an arithmetic number, because the mean of its divisors is an integer number (3598550004).

Almost surely, 2^42535001121 is an apocalyptic number.

It is an amenable number.

42535001121 is a deficient number, since it is larger than the sum of its proper divisors (15041798943).

42535001121 is a wasteful number, since it uses less digits than its factorization.

42535001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62560.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 42535001121 its reverse (12110053524), we get a palindrome (54645054645).

The spelling of 42535001121 in words is "forty-two billion, five hundred thirty-five million, one thousand, one hundred twenty-one".