42142121321004 has 144 divisors (see below), whose sum is σ = 116606520576000. Its totient is φ = 12781866303360.

The previous prime is 42142121320979. The next prime is 42142121321057. The reversal of 42142121321004 is 40012312124124.

42142121321004 is a `hidden beast` number, since 4 + 2 + 1 + 421 + 2 + 132 + 100 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1772914 + ... + 9350265.

It is an arithmetic number, because the mean of its divisors is an integer number (809767504000).

Almost surely, 2^{42142121321004} is an apocalyptic number.

It is an amenable number.

42142121321004 is an abundant number, since it is smaller than the sum of its proper divisors (74464399254996).

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

42142121321004 is a wasteful number, since it uses less digits than its factorization.

42142121321004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11123428 (or 11123423 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 42142121321004 its reverse (40012312124124), we get a palindrome (82154433445128).

The spelling of 42142121321004 in words is "forty-two trillion, one hundred forty-two billion, one hundred twenty-one million, three hundred twenty-one thousand, four".