42121433210142 has 64 divisors (see below), whose sum is σ = 99990956346624. Its totient is φ = 11660752880640.

The previous prime is 42121433210113. The next prime is 42121433210161. The reversal of 42121433210142 is 24101233412124.

It is a happy number.

It is a super-2 number, since 2×42121433210142² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252971308 + ... + 253137759.

It is an arithmetic number, because the mean of its divisors is an integer number (1562358692916).

Almost surely, 2^{42121433210142} is an apocalyptic number.

42121433210142 is an abundant number, since it is smaller than the sum of its proper divisors (57869523136482).

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

42121433210142 is a wasteful number, since it uses less digits than its factorization.

42121433210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506109193.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 42121433210142 its reverse (24101233412124), we get a palindrome (66222666622266).

The spelling of 42121433210142 in words is "forty-two trillion, one hundred twenty-one billion, four hundred thirty-three million, two hundred ten thousand, one hundred forty-two".