42111331434 has 64 divisors (see below), whose sum is σ = 94613625600. Its totient is φ = 13882539456.

The previous prime is 42111331429. The next prime is 42111331571. The reversal of 42111331434 is 43413311124.

42111331434 is a `hidden beast` number, since 4 + 211 + 13 + 3 + 1 + 434 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 42111331398 and 42111331407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4606332 + ... + 4615464.

It is an arithmetic number, because the mean of its divisors is an integer number (1478337900).

Almost surely, 2^42111331434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42111331434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47306812800).

42111331434 is an abundant number, since it is smaller than the sum of its proper divisors (52502294166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42111331434 is a wasteful number, since it uses less digits than its factorization.

42111331434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076 (or 10070 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 42111331434 its reverse (43413311124), we get a palindrome (85524642558).

The spelling of 42111331434 in words is "forty-two billion, one hundred eleven million, three hundred thirty-one thousand, four hundred thirty-four".