42031140101 has 4 divisors (see below), whose sum is σ = 42031627500. Its totient is φ = 42030652704.

The previous prime is 42031140097. The next prime is 42031140163. The reversal of 42031140101 is 10104113024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2379976225 + 39651163876 = 48785^2 + 199126^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031140101 - 2² = 42031140097 is a prime.

It is a super-3 number, since 3×42031140101³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42031140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031140191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75776 + ... + 299673.

It is an arithmetic number, because the mean of its divisors is an integer number (10507906875).

Almost surely, 2^42031140101 is an apocalyptic number.

It is an amenable number.

42031140101 is a deficient number, since it is larger than the sum of its proper divisors (487399).

42031140101 is a wasteful number, since it uses less digits than its factorization.

42031140101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487398.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 42031140101 its reverse (10104113024), we get a palindrome (52135253125).

The spelling of 42031140101 in words is "forty-two billion, thirty-one million, one hundred forty thousand, one hundred one".