42121011044 has 24 divisors (see below), whose sum is σ = 89197436160. Its totient is φ = 16989987456.

The previous prime is 42121011029. The next prime is 42121011073. The reversal of 42121011044 is 44011012124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44244284 + ... + 44245235.

It is an arithmetic number, because the mean of its divisors is an integer number (3716559840).

Almost surely, 2^42121011044 is an apocalyptic number.

It is an amenable number.

42121011044 is an abundant number, since it is smaller than the sum of its proper divisors (47076425116).

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

42121011044 is a wasteful number, since it uses less digits than its factorization.

42121011044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88489547 (or 88489545 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 42121011044 its reverse (44011012124), we get a palindrome (86132023168).

The spelling of 42121011044 in words is "forty-two billion, one hundred twenty-one million, eleven thousand, forty-four".