42003434031011 has 4 divisors (see below), whose sum is σ = 42006669308112. Its totient is φ = 42000198753912.

The previous prime is 42003434031007. The next prime is 42003434031017. The reversal of 42003434031011 is 11013043430024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42003434031011 - 2² = 42003434031007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42003434031017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1617619076 + ... + 1617645041.

It is an arithmetic number, because the mean of its divisors is an integer number (10501667327028).

Almost surely, 2^{42003434031011} is an apocalyptic number.

42003434031011 is a deficient number, since it is larger than the sum of its proper divisors (3235277101).

42003434031011 is a wasteful number, since it uses less digits than its factorization.

42003434031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235277100.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 42003434031011 its reverse (11013043430024), we get a palindrome (53016477461035).

The spelling of 42003434031011 in words is "forty-two trillion, three billion, four hundred thirty-four million, thirty-one thousand, eleven".