42021312004434 has 32 divisors (see below), whose sum is σ = 96049198356480. Its totient is φ = 12006028493712.

The previous prime is 42021312004411. The next prime is 42021312004459. The reversal of 42021312004434 is 43440021312024.

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 15 ways as a sum of consecutive naturals, for example, 6244177 + ... + 11091995.

It is an arithmetic number, because the mean of its divisors is an integer number (3001537448640).

Almost surely, 2^{42021312004434} is an apocalyptic number.

42021312004434 is an abundant number, since it is smaller than the sum of its proper divisors (54027886352046).

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

42021312004434 is a wasteful number, since it uses less digits than its factorization.

42021312004434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054214.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 42021312004434 its reverse (43440021312024), we get a palindrome (85461333316458).

The spelling of 42021312004434 in words is "forty-two trillion, twenty-one billion, three hundred twelve million, four thousand, four hundred thirty-four".