21161004001411 has 2 divisors, whose sum is σ = 21161004001412. Its totient is φ = 21161004001410.

The previous prime is 21161004001399. The next prime is 21161004001421. The reversal of 21161004001411 is 11410040016112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21161004001411 - 2²⁹ = 21160467130499 is a prime.

It is not a weakly prime, because it can be changed into another prime (21161004001421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10580502000705 + 10580502000706.

It is an arithmetic number, because the mean of its divisors is an integer number (10580502000706).

Almost surely, 2^{21161004001411} is an apocalyptic number.

21161004001411 is a deficient number, since it is larger than the sum of its proper divisors (1).

21161004001411 is an equidigital number, since it uses as much as digits as its factorization.

21161004001411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 21161004001411 its reverse (11410040016112), we get a palindrome (32571044017523).

The spelling of 21161004001411 in words is "twenty-one trillion, one hundred sixty-one billion, four million, one thousand, four hundred eleven".