99991020301 has 4 divisors (see below), whose sum is σ = 105253705600. Its totient is φ = 94728335004.

The previous prime is 99991020289. The next prime is 99991020313. The reversal of 99991020301 is 10302019999.

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.

It is an interprime number because it is at equal distance from previous prime (99991020289) and next prime (99991020313).

It is a cyclic number.

It is not a de Polignac number, because 99991020301 - 2¹⁹ = 99990496013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99991020331) 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, 2631342621 + ... + 2631342658.

It is an arithmetic number, because the mean of its divisors is an integer number (26313426400).

Almost surely, 2^99991020301 is an apocalyptic number.

It is an amenable number.

99991020301 is a deficient number, since it is larger than the sum of its proper divisors (5262685299).

99991020301 is a wasteful number, since it uses less digits than its factorization.

99991020301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262685298.

The product of its (nonzero) digits is 39366, while the sum is 43.

The spelling of 99991020301 in words is "ninety-nine billion, nine hundred ninety-one million, twenty thousand, three hundred one".