42003343011 has 32 divisors (see below), whose sum is σ = 67866094080. Its totient is φ = 22558035456.

The previous prime is 42003342917. The next prime is 42003343013. The reversal of 42003343011 is 11034330024.

It is not a de Polignac number, because 42003343011 - 2²³ = 41994954403 is a prime.

It is a super-2 number, since 2×42003343011² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (42003343013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170140 + ... + 336086.

It is an arithmetic number, because the mean of its divisors is an integer number (2120815440).

Almost surely, 2^42003343011 is an apocalyptic number.

42003343011 is a deficient number, since it is larger than the sum of its proper divisors (25862751069).

42003343011 is a wasteful number, since it uses less digits than its factorization.

42003343011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166683.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 42003343011 its reverse (11034330024), we get a palindrome (53037673035).

The spelling of 42003343011 in words is "forty-two billion, three million, three hundred forty-three thousand, eleven".