2021012002369 has 2 divisors, whose sum is σ = 2021012002370. Its totient is φ = 2021012002368.

The previous prime is 2021012002349. The next prime is 2021012002381. The reversal of 2021012002369 is 9632002101202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1999644871744 + 21367130625 = 1414088^2 + 146175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021012002369 - 2¹⁷ = 2021011871297 is a prime.

It is a super-2 number, since 2×2021012002369² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021012002319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010506001184 + 1010506001185.

It is an arithmetic number, because the mean of its divisors is an integer number (1010506001185).

Almost surely, 2^{2021012002369} is an apocalyptic number.

It is an amenable number.

2021012002369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021012002369 is an equidigital number, since it uses as much as digits as its factorization.

2021012002369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 2021012002369 in words is "two trillion, twenty-one billion, twelve million, two thousand, three hundred sixty-nine".