999300122501 has 2 divisors, whose sum is σ = 999300122502. Its totient is φ = 999300122500.

The previous prime is 999300122497. The next prime is 999300122549. The reversal of 999300122501 is 105221003999.

It is a Cunningham number, because it is equal to 999650²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999300122500 + 1 = 999650^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 999300122501 - 2² = 999300122497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999300122551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499650061250 + 499650061251.

It is an arithmetic number, because the mean of its divisors is an integer number (499650061251).

Almost surely, 2^999300122501 is an apocalyptic number.

It is an amenable number.

999300122501 is a deficient number, since it is larger than the sum of its proper divisors (1).

999300122501 is an equidigital number, since it uses as much as digits as its factorization.

999300122501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43740, while the sum is 41.

The spelling of 999300122501 in words is "nine hundred ninety-nine billion, three hundred million, one hundred twenty-two thousand, five hundred one".