11430840947 has 2 divisors, whose sum is σ = 11430840948. Its totient is φ = 11430840946.

The previous prime is 11430840913. The next prime is 11430840977. The reversal of 11430840947 is 74904803411.

11430840947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11430840947 - 2¹⁴ = 11430824563 is a prime.

It is a super-2 number, since 2×11430840947² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11430840977) 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, 5715420473 + 5715420474.

It is an arithmetic number, because the mean of its divisors is an integer number (5715420474).

Almost surely, 2^11430840947 is an apocalyptic number.

11430840947 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430840947 is an equidigital number, since it uses as much as digits as its factorization.

11430840947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 11430840947 in words is "eleven billion, four hundred thirty million, eight hundred forty thousand, nine hundred forty-seven".