1401113243 has 2 divisors, whose sum is σ = 1401113244. Its totient is φ = 1401113242.

The previous prime is 1401113227. The next prime is 1401113249. The reversal of 1401113243 is 3423111041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1401113243 - 2⁴ = 1401113227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1401113249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700556621 + 700556622.

It is an arithmetic number, because the mean of its divisors is an integer number (700556622).

Almost surely, 2^1401113243 is an apocalyptic number.

1401113243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401113243 is an equidigital number, since it uses as much as digits as its factorization.

1401113243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1401113243 is about 37431.4472469340. The cubic root of 1401113243 is about 1118.9853808157.

Adding to 1401113243 its reverse (3423111041), we get a palindrome (4824224284).

The spelling of 1401113243 in words is "one billion, four hundred one million, one hundred thirteen thousand, two hundred forty-three".