42031110103 has 4 divisors (see below), whose sum is σ = 42034447728. Its totient is φ = 42027772480.

The previous prime is 42031110101. The next prime is 42031110127. The reversal of 42031110103 is 30101113024.

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 42031110103 - 2¹ = 42031110101 is a prime.

It is a super-2 number, since 2×42031110103² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031110101) 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, 1649851 + ... + 1675132.

It is an arithmetic number, because the mean of its divisors is an integer number (10508611932).

Almost surely, 2^42031110103 is an apocalyptic number.

42031110103 is a deficient number, since it is larger than the sum of its proper divisors (3337625).

42031110103 is a wasteful number, since it uses less digits than its factorization.

42031110103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3337624.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 42031110103 its reverse (30101113024), we get a palindrome (72132223127).

The spelling of 42031110103 in words is "forty-two billion, thirty-one million, one hundred ten thousand, one hundred three".