142344302021 has 2 divisors, whose sum is σ = 142344302022. Its totient is φ = 142344302020.

The previous prime is 142344301999. The next prime is 142344302059. The reversal of 142344302021 is 120203443241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76405252225 + 65939049796 = 276415^2 + 256786^2 .

It is a cyclic number.

It is not a de Polignac number, because 142344302021 - 2¹⁰ = 142344300997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142344302081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71172151010 + 71172151011.

It is an arithmetic number, because the mean of its divisors is an integer number (71172151011).

Almost surely, 2^142344302021 is an apocalyptic number.

It is an amenable number.

142344302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

142344302021 is an equidigital number, since it uses as much as digits as its factorization.

142344302021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 142344302021 its reverse (120203443241), we get a palindrome (262547745262).

The spelling of 142344302021 in words is "one hundred forty-two billion, three hundred forty-four million, three hundred two thousand, twenty-one".