1001068129421 has 2 divisors, whose sum is σ = 1001068129422. Its totient is φ = 1001068129420.

The previous prime is 1001068129297. The next prime is 1001068129433. The reversal of 1001068129421 is 1249218601001.

1001068129421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 745450926025 + 255617203396 = 863395^2 + 505586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001068129421 - 2¹⁰ = 1001068128397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001068129921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500534064710 + 500534064711.

It is an arithmetic number, because the mean of its divisors is an integer number (500534064711).

Almost surely, 2^{1001068129421} is an apocalyptic number.

It is an amenable number.

1001068129421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001068129421 is an equidigital number, since it uses as much as digits as its factorization.

1001068129421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 1001068129421 in words is "one trillion, one billion, sixty-eight million, one hundred twenty-nine thousand, four hundred twenty-one".