1400243246971 has 2 divisors, whose sum is σ = 1400243246972. Its totient is φ = 1400243246970.

The previous prime is 1400243246953. The next prime is 1400243247077. The reversal of 1400243246971 is 1796423420041.

It is a weak prime.

It is an emirp because it is prime and its reverse (1796423420041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1400243246971 - 2³⁵ = 1365883508603 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400243246911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700121623485 + 700121623486.

It is an arithmetic number, because the mean of its divisors is an integer number (700121623486).

Almost surely, 2^{1400243246971} is an apocalyptic number.

1400243246971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400243246971 is an equidigital number, since it uses as much as digits as its factorization.

1400243246971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 1400243246971 in words is "one trillion, four hundred billion, two hundred forty-three million, two hundred forty-six thousand, nine hundred seventy-one".