990302425403 has 2 divisors, whose sum is σ = 990302425404. Its totient is φ = 990302425402.

The previous prime is 990302425397. The next prime is 990302425457. The reversal of 990302425403 is 304524203099.

It is a weak prime.

It is an emirp because it is prime and its reverse (304524203099) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 990302425403 - 2¹⁶ = 990302359867 is a prime.

It is not a weakly prime, because it can be changed into another prime (990302425103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495151212701 + 495151212702.

It is an arithmetic number, because the mean of its divisors is an integer number (495151212702).

Almost surely, 2^990302425403 is an apocalyptic number.

990302425403 is a deficient number, since it is larger than the sum of its proper divisors (1).

990302425403 is an equidigital number, since it uses as much as digits as its factorization.

990302425403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 990302425403 in words is "nine hundred ninety billion, three hundred two million, four hundred twenty-five thousand, four hundred three".