90100202003 has 4 divisors (see below), whose sum is σ = 102971659440. Its totient is φ = 77228744568.

The previous prime is 90100201991. The next prime is 90100202021. The reversal of 90100202003 is 30020200109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30020200109 = 59 ⋅508816951.

It is a cyclic number.

It is not a de Polignac number, because 90100202003 - 2¹⁴ = 90100185619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90100202053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6435728708 + ... + 6435728721.

It is an arithmetic number, because the mean of its divisors is an integer number (25742914860).

Almost surely, 2^90100202003 is an apocalyptic number.

90100202003 is a deficient number, since it is larger than the sum of its proper divisors (12871457437).

90100202003 is a wasteful number, since it uses less digits than its factorization.

90100202003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12871457436.

The product of its (nonzero) digits is 108, while the sum is 17.

The spelling of 90100202003 in words is "ninety billion, one hundred million, two hundred two thousand, three".