142210303421 has 2 divisors, whose sum is σ = 142210303422. Its totient is φ = 142210303420.

The previous prime is 142210303399. The next prime is 142210303441. The reversal of 142210303421 is 124303012241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90869088025 + 51341215396 = 301445^2 + 226586^2 .

It is a cyclic number.

It is not a de Polignac number, because 142210303421 - 2²² = 142206109117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142210303441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71105151710 + 71105151711.

It is an arithmetic number, because the mean of its divisors is an integer number (71105151711).

Almost surely, 2^142210303421 is an apocalyptic number.

It is an amenable number.

142210303421 is a deficient number, since it is larger than the sum of its proper divisors (1).

142210303421 is an equidigital number, since it uses as much as digits as its factorization.

142210303421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 142210303421 its reverse (124303012241), we get a palindrome (266513315662).

The spelling of 142210303421 in words is "one hundred forty-two billion, two hundred ten million, three hundred three thousand, four hundred twenty-one".