42140121142 has 32 divisors (see below), whose sum is σ = 72556683264. Its totient is φ = 17981028000.

The previous prime is 42140121113. The next prime is 42140121229. The reversal of 42140121142 is 24112104124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7399248 + ... + 7404940.

It is an arithmetic number, because the mean of its divisors is an integer number (2267396352).

Almost surely, 2^42140121142 is an apocalyptic number.

42140121142 is a deficient number, since it is larger than the sum of its proper divisors (30416562122).

42140121142 is a wasteful number, since it uses less digits than its factorization.

42140121142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7924.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 42140121142 its reverse (24112104124), we get a palindrome (66252225266).

The spelling of 42140121142 in words is "forty-two billion, one hundred forty million, one hundred twenty-one thousand, one hundred forty-two".