1441421111381 has 2 divisors, whose sum is σ = 1441421111382. Its totient is φ = 1441421111380.

The previous prime is 1441421111297. The next prime is 1441421111401. The reversal of 1441421111381 is 1831111241441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430258132356 + 11162979025 = 1195934^2 + 105655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441421111381 is a prime.

It is a super-2 number, since 2×1441421111381² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441421113381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720710555690 + 720710555691.

It is an arithmetic number, because the mean of its divisors is an integer number (720710555691).

Almost surely, 2^{1441421111381} is an apocalyptic number.

It is an amenable number.

1441421111381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441421111381 is an equidigital number, since it uses as much as digits as its factorization.

1441421111381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 32.

The spelling of 1441421111381 in words is "one trillion, four hundred forty-one billion, four hundred twenty-one million, one hundred eleven thousand, three hundred eighty-one".