42111433021 has 16 divisors (see below), whose sum is σ = 48927923968. Its totient is φ = 35495366400.

The previous prime is 42111433003. The next prime is 42111433069. The reversal of 42111433021 is 12033411124.

It is a cyclic number.

It is not a de Polignac number, because 42111433021 - 2⁷ = 42111432893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42111432983 and 42111433001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42111433081) 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, 2348536 + ... + 2366398.

It is an arithmetic number, because the mean of its divisors is an integer number (3057995248).

Almost surely, 2^42111433021 is an apocalyptic number.

It is an amenable number.

42111433021 is a deficient number, since it is larger than the sum of its proper divisors (6816490947).

42111433021 is a wasteful number, since it uses less digits than its factorization.

42111433021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23452.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 42111433021 its reverse (12033411124), we get a palindrome (54144844145).

The spelling of 42111433021 in words is "forty-two billion, one hundred eleven million, four hundred thirty-three thousand, twenty-one".