11403400091 has 2 divisors, whose sum is σ = 11403400092. Its totient is φ = 11403400090.

The previous prime is 11403400087. The next prime is 11403400157. The reversal of 11403400091 is 19000430411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11403400091 - 2² = 11403400087 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11403402091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701700045 + 5701700046.

It is an arithmetic number, because the mean of its divisors is an integer number (5701700046).

Almost surely, 2^11403400091 is an apocalyptic number.

11403400091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403400091 is an equidigital number, since it uses as much as digits as its factorization.

11403400091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 11403400091 in words is "eleven billion, four hundred three million, four hundred thousand, ninety-one".