2021334434387 has 2 divisors, whose sum is σ = 2021334434388. Its totient is φ = 2021334434386.

The previous prime is 2021334434341. The next prime is 2021334434419. The reversal of 2021334434387 is 7834344331202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021334434387 - 2¹⁴ = 2021334418003 is a prime.

It is a super-2 number, since 2×2021334434387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021334433387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010667217193 + 1010667217194.

It is an arithmetic number, because the mean of its divisors is an integer number (1010667217194).

Almost surely, 2^{2021334434387} is an apocalyptic number.

2021334434387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021334434387 is an equidigital number, since it uses as much as digits as its factorization.

2021334434387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 44.

Adding to 2021334434387 its reverse (7834344331202), we get a palindrome (9855678765589).

The spelling of 2021334434387 in words is "two trillion, twenty-one billion, three hundred thirty-four million, four hundred thirty-four thousand, three hundred eighty-seven".