1401866363311 has 2 divisors, whose sum is σ = 1401866363312. Its totient is φ = 1401866363310.

The previous prime is 1401866363309. The next prime is 1401866363323. The reversal of 1401866363311 is 1133636681041.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1133636681041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1401866363311 - 2¹ = 1401866363309 is a prime.

Together with 1401866363309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401866363411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700933181655 + 700933181656.

It is an arithmetic number, because the mean of its divisors is an integer number (700933181656).

Almost surely, 2^{1401866363311} is an apocalyptic number.

1401866363311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401866363311 is an equidigital number, since it uses as much as digits as its factorization.

1401866363311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 1401866363311 in words is "one trillion, four hundred one billion, eight hundred sixty-six million, three hundred sixty-three thousand, three hundred eleven".