42420023111 has 8 divisors (see below), whose sum is σ = 43034369664. Its totient is φ = 41806575360.

The previous prime is 42420023059. The next prime is 42420023119. The reversal of 42420023111 is 11132002424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42420023111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42420023119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129335 + ... + 318696.

It is an arithmetic number, because the mean of its divisors is an integer number (5379296208).

Almost surely, 2^42420023111 is an apocalyptic number.

42420023111 is a deficient number, since it is larger than the sum of its proper divisors (614346553).

42420023111 is a wasteful number, since it uses less digits than its factorization.

42420023111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449401.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 42420023111 its reverse (11132002424), we get a palindrome (53552025535).

The spelling of 42420023111 in words is "forty-two billion, four hundred twenty million, twenty-three thousand, one hundred eleven".