2021301125149 has 2 divisors, whose sum is σ = 2021301125150. Its totient is φ = 2021301125148.

The previous prime is 2021301125119. The next prime is 2021301125177. The reversal of 2021301125149 is 9415211031202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1894771521049 + 126529604100 = 1376507^2 + 355710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021301125149 - 2⁹ = 2021301124637 is a prime.

It is a super-2 number, since 2×2021301125149² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2021301125149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021301125119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010650562574 + 1010650562575.

It is an arithmetic number, because the mean of its divisors is an integer number (1010650562575).

Almost surely, 2^{2021301125149} is an apocalyptic number.

It is an amenable number.

2021301125149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021301125149 is an equidigital number, since it uses as much as digits as its factorization.

2021301125149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 2021301125149 in words is "two trillion, twenty-one billion, three hundred one million, one hundred twenty-five thousand, one hundred forty-nine".