1401443442073 has 2 divisors, whose sum is σ = 1401443442074. Its totient is φ = 1401443442072.

The previous prime is 1401443442053. The next prime is 1401443442103. The reversal of 1401443442073 is 3702443441041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 978490920969 + 422952521104 = 989187^2 + 650348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401443442073 - 2²¹ = 1401441344921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401443442023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700721721036 + 700721721037.

It is an arithmetic number, because the mean of its divisors is an integer number (700721721037).

Almost surely, 2^{1401443442073} is an apocalyptic number.

It is an amenable number.

1401443442073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401443442073 is an equidigital number, since it uses as much as digits as its factorization.

1401443442073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 1401443442073 in words is "one trillion, four hundred one billion, four hundred forty-three million, four hundred forty-two thousand, seventy-three".