28313021383 has 2 divisors, whose sum is σ = 28313021384. Its totient is φ = 28313021382.

The previous prime is 28313021371. The next prime is 28313021393. The reversal of 28313021383 is 38312031382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28313021383 - 2¹⁷ = 28312890311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28313021353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14156510691 + 14156510692.

It is an arithmetic number, because the mean of its divisors is an integer number (14156510692).

Almost surely, 2^28313021383 is an apocalyptic number.

28313021383 is a deficient number, since it is larger than the sum of its proper divisors (1).

28313021383 is an equidigital number, since it uses as much as digits as its factorization.

28313021383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

Subtracting 28313021383 from its reverse (38312031382), we obtain a palindrome (9999009999).

The spelling of 28313021383 in words is "twenty-eight billion, three hundred thirteen million, twenty-one thousand, three hundred eighty-three".