42031333111 has 2 divisors, whose sum is σ = 42031333112. Its totient is φ = 42031333110.

The previous prime is 42031333093. The next prime is 42031333117. The reversal of 42031333111 is 11133313024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42031333111 - 2¹³ = 42031324919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42031333117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21015666555 + 21015666556.

It is an arithmetic number, because the mean of its divisors is an integer number (21015666556).

Almost surely, 2^42031333111 is an apocalyptic number.

42031333111 is a deficient number, since it is larger than the sum of its proper divisors (1).

42031333111 is an equidigital number, since it uses as much as digits as its factorization.

42031333111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 42031333111 its reverse (11133313024), we get a palindrome (53164646135).

The spelling of 42031333111 in words is "forty-two billion, thirty-one million, three hundred thirty-three thousand, one hundred eleven".