142121434004 has 24 divisors (see below), whose sum is σ = 277632572448. Its totient is φ = 63098310240.

The previous prime is 142121433977. The next prime is 142121434019. The reversal of 142121434004 is 400434121241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37556627 + ... + 37560410.

It is an arithmetic number, because the mean of its divisors is an integer number (11568023852).

Almost surely, 2^142121434004 is an apocalyptic number.

It is an amenable number.

142121434004 is a deficient number, since it is larger than the sum of its proper divisors (135511138444).

142121434004 is a wasteful number, since it uses less digits than its factorization.

142121434004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75117095 (or 75117093 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 142121434004 its reverse (400434121241), we get a palindrome (542555555245).

The spelling of 142121434004 in words is "one hundred forty-two billion, one hundred twenty-one million, four hundred thirty-four thousand, four".