90303000121 has 4 divisors (see below), whose sum is σ = 90304272000. Its totient is φ = 90301728244.

The previous prime is 90303000103. The next prime is 90303000133. The reversal of 90303000121 is 12100030309.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100030309 = 647 ⋅18701747.

It is a cyclic number.

It is not a de Polignac number, because 90303000121 - 2¹¹ = 90302998073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90303000181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522721 + ... + 673678.

It is an arithmetic number, because the mean of its divisors is an integer number (22576068000).

Almost surely, 2^90303000121 is an apocalyptic number.

It is an amenable number.

90303000121 is a deficient number, since it is larger than the sum of its proper divisors (1271879).

90303000121 is a wasteful number, since it uses less digits than its factorization.

90303000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271878.

The product of its (nonzero) digits is 162, while the sum is 19.

The spelling of 90303000121 in words is "ninety billion, three hundred three million, one hundred twenty-one", and thus it is an aban number.