90312322003 has 2 divisors, whose sum is σ = 90312322004. Its totient is φ = 90312322002.

The previous prime is 90312321997. The next prime is 90312322013. The reversal of 90312322003 is 30022321309.

It is a weak prime.

It is an emirp because it is prime and its reverse (30022321309) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90312322003 - 2²⁵ = 90278767571 is a prime.

It is not a weakly prime, because it can be changed into another prime (90312322013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45156161001 + 45156161002.

It is an arithmetic number, because the mean of its divisors is an integer number (45156161002).

Almost surely, 2^90312322003 is an apocalyptic number.

90312322003 is a deficient number, since it is larger than the sum of its proper divisors (1).

90312322003 is an equidigital number, since it uses as much as digits as its factorization.

90312322003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 90312322003 in words is "ninety billion, three hundred twelve million, three hundred twenty-two thousand, three".