28923320003129 has 2 divisors, whose sum is σ = 28923320003130. Its totient is φ = 28923320003128.

The previous prime is 28923320003089. The next prime is 28923320003141. The reversal of 28923320003129 is 92130002332982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20483336325904 + 8439983677225 = 4525852^2 + 2905165^2 .

It is a cyclic number.

It is not a de Polignac number, because 28923320003129 - 2⁴⁰ = 27823808375353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28923320003129.

It is not a weakly prime, because it can be changed into another prime (28923320003189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14461660001564 + 14461660001565.

It is an arithmetic number, because the mean of its divisors is an integer number (14461660001565).

Almost surely, 2^{28923320003129} is an apocalyptic number.

It is an amenable number.

28923320003129 is a deficient number, since it is larger than the sum of its proper divisors (1).

28923320003129 is an equidigital number, since it uses as much as digits as its factorization.

28923320003129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 28923320003129 in words is "twenty-eight trillion, nine hundred twenty-three billion, three hundred twenty million, three thousand, one hundred twenty-nine".