42031212234043 has 4 divisors (see below), whose sum is σ = 42031325825848. Its totient is φ = 42031098642240.

The previous prime is 42031212234017. The next prime is 42031212234119. The reversal of 42031212234043 is 34043221213024.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42031212234043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42031212233996 and 42031212234014.

It is not an unprimeable number, because it can be changed into a prime (42032212234043) 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, 56239053 + ... + 56981518.

It is an arithmetic number, because the mean of its divisors is an integer number (10507831456462).

Almost surely, 2^{42031212234043} is an apocalyptic number.

42031212234043 is a deficient number, since it is larger than the sum of its proper divisors (113591805).

42031212234043 is a wasteful number, since it uses less digits than its factorization.

42031212234043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113591804.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 42031212234043 its reverse (34043221213024), we get a palindrome (76074433447067).

The spelling of 42031212234043 in words is "forty-two trillion, thirty-one billion, two hundred twelve million, two hundred thirty-four thousand, forty-three".