300021023149 has 2 divisors, whose sum is σ = 300021023150. Its totient is φ = 300021023148.

The previous prime is 300021023119. The next prime is 300021023161. The reversal of 300021023149 is 941320120003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 272581100649 + 27439922500 = 522093^2 + 165650^2 .

It is a cyclic number.

It is not a de Polignac number, because 300021023149 - 2³⁵ = 265661284781 is a prime.

It is a super-2 number, since 2×300021023149² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300021023119) 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 as a sum of consecutive naturals, namely, 150010511574 + 150010511575.

It is an arithmetic number, because the mean of its divisors is an integer number (150010511575).

Almost surely, 2^300021023149 is an apocalyptic number.

It is an amenable number.

300021023149 is a deficient number, since it is larger than the sum of its proper divisors (1).

300021023149 is an equidigital number, since it uses as much as digits as its factorization.

300021023149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 300021023149 in words is "three hundred billion, twenty-one million, twenty-three thousand, one hundred forty-nine".