1401330033421 has 2 divisors, whose sum is σ = 1401330033422. Its totient is φ = 1401330033420.

The previous prime is 1401330033409. The next prime is 1401330033479. The reversal of 1401330033421 is 1243300331041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1362997875625 + 38332157796 = 1167475^2 + 195786^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401330033421 - 2⁹ = 1401330032909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401330073421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700665016710 + 700665016711.

It is an arithmetic number, because the mean of its divisors is an integer number (700665016711).

Almost surely, 2^{1401330033421} is an apocalyptic number.

It is an amenable number.

1401330033421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401330033421 is an equidigital number, since it uses as much as digits as its factorization.

1401330033421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1401330033421 its reverse (1243300331041), we get a palindrome (2644630364462).

The spelling of 1401330033421 in words is "one trillion, four hundred one billion, three hundred thirty million, thirty-three thousand, four hundred twenty-one".