11401272691 has 2 divisors, whose sum is σ = 11401272692. Its totient is φ = 11401272690.

The previous prime is 11401272637. The next prime is 11401272697. The reversal of 11401272691 is 19627210411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11401272691 - 2²¹ = 11399175539 is a prime.

It is not a weakly prime, because it can be changed into another prime (11401272697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5700636345 + 5700636346.

It is an arithmetic number, because the mean of its divisors is an integer number (5700636346).

Almost surely, 2^11401272691 is an apocalyptic number.

11401272691 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401272691 is an equidigital number, since it uses as much as digits as its factorization.

11401272691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 11401272691 in words is "eleven billion, four hundred one million, two hundred seventy-two thousand, six hundred ninety-one".