142431002402221 has 16 divisors (see below), whose sum is σ = 154596063283200. Its totient is φ = 130438645662528.

The previous prime is 142431002402209. The next prime is 142431002402233. The reversal of 142431002402221 is 122204200134241.

It is an interprime number because it is at equal distance from previous prime (142431002402209) and next prime (142431002402233).

It is a cyclic number.

It is not a de Polignac number, because 142431002402221 - 2⁵ = 142431002402189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142431002402221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431002402251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445509495 + ... + 445829083.

It is an arithmetic number, because the mean of its divisors is an integer number (9662253955200).

Almost surely, 2^{142431002402221} is an apocalyptic number.

It is an amenable number.

142431002402221 is a deficient number, since it is larger than the sum of its proper divisors (12165060880979).

142431002402221 is a wasteful number, since it uses less digits than its factorization.

142431002402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589668.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 142431002402221 its reverse (122204200134241), we get a palindrome (264635202536462).

The spelling of 142431002402221 in words is "one hundred forty-two trillion, four hundred thirty-one billion, two million, four hundred two thousand, two hundred twenty-one".