1444103432381 has 2 divisors, whose sum is σ = 1444103432382. Its totient is φ = 1444103432380.

The previous prime is 1444103432353. The next prime is 1444103432383. The reversal of 1444103432381 is 1832343014441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1416835515481 + 27267916900 = 1190309^2 + 165130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444103432381 - 2²² = 1444099238077 is a prime.

It is a super-2 number, since 2×1444103432381² (a number of 25 digits) contains 22 as substring.

Together with 1444103432383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444103432383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722051716190 + 722051716191.

It is an arithmetic number, because the mean of its divisors is an integer number (722051716191).

Almost surely, 2^{1444103432381} is an apocalyptic number.

It is an amenable number.

1444103432381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444103432381 is an equidigital number, since it uses as much as digits as its factorization.

1444103432381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 1444103432381 in words is "one trillion, four hundred forty-four billion, one hundred three million, four hundred thirty-two thousand, three hundred eighty-one".