42111112334131 has 4 divisors (see below), whose sum is σ = 43090440527992. Its totient is φ = 41131784140272.

The previous prime is 42111112334129. The next prime is 42111112334147. The reversal of 42111112334131 is 13143321111124.

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 42111112334131 - 2¹ = 42111112334129 is a prime.

It is a super-2 number, since 2×42111112334131² (a number of 28 digits) contains 22 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 42111112334131.

It is not an unprimeable number, because it can be changed into a prime (42111112334111) 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, 489664096866 + ... + 489664096951.

It is an arithmetic number, because the mean of its divisors is an integer number (10772610131998).

Almost surely, 2^{42111112334131} is an apocalyptic number.

42111112334131 is a deficient number, since it is larger than the sum of its proper divisors (979328193861).

42111112334131 is an equidigital number, since it uses as much as digits as its factorization.

42111112334131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979328193860.

The product of its digits is 1728, while the sum is 28.

Adding to 42111112334131 its reverse (13143321111124), we get a palindrome (55254433445255).

The spelling of 42111112334131 in words is "forty-two trillion, one hundred eleven billion, one hundred twelve million, three hundred thirty-four thousand, one hundred thirty-one".