303423140014021 has 2 divisors, whose sum is σ = 303423140014022. Its totient is φ = 303423140014020.

The previous prime is 303423140014013. The next prime is 303423140014129. The reversal of 303423140014021 is 120410041324303.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300586479004900 + 2836661009121 = 17337430^2 + 1684239^2 .

It is a cyclic number.

It is not a de Polignac number, because 303423140014021 - 2³ = 303423140014013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (303423140014721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151711570007010 + 151711570007011.

It is an arithmetic number, because the mean of its divisors is an integer number (151711570007011).

Almost surely, 2^{303423140014021} is an apocalyptic number.

It is an amenable number.

303423140014021 is a deficient number, since it is larger than the sum of its proper divisors (1).

303423140014021 is an equidigital number, since it uses as much as digits as its factorization.

303423140014021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 303423140014021 its reverse (120410041324303), we get a palindrome (423833181338324).

The spelling of 303423140014021 in words is "three hundred three trillion, four hundred twenty-three billion, one hundred forty million, fourteen thousand, twenty-one".