42431004122111 has 16 divisors (see below), whose sum is σ = 48822242640000. Its totient is φ = 36470215072800.

The previous prime is 42431004122033. The next prime is 42431004122123. The reversal of 42431004122111 is 11122140013424.

It is a cyclic number.

It is not a de Polignac number, because 42431004122111 - 2³⁸ = 42156126215167 is a prime.

It is a super-2 number, since 2×42431004122111² (a number of 28 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 (42431004124111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203321720 + ... + 203530301.

It is an arithmetic number, because the mean of its divisors is an integer number (3051390165000).

Almost surely, 2^{42431004122111} is an apocalyptic number.

42431004122111 is a deficient number, since it is larger than the sum of its proper divisors (6391238517889).

42431004122111 is a wasteful number, since it uses less digits than its factorization.

42431004122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406852550.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 42431004122111 its reverse (11122140013424), we get a palindrome (53553144135535).

The spelling of 42431004122111 in words is "forty-two trillion, four hundred thirty-one billion, four million, one hundred twenty-two thousand, one hundred eleven".