11430840977 has 2 divisors, whose sum is σ = 11430840978. Its totient is φ = 11430840976.

The previous prime is 11430840947. The next prime is 11430840979. The reversal of 11430840977 is 77904803411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11151148801 + 279692176 = 105599^2 + 16724^2 .

It is an emirp because it is prime and its reverse (77904803411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11430840977 - 2⁶ = 11430840913 is a prime.

Together with 11430840979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11430840979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715420488 + 5715420489.

It is an arithmetic number, because the mean of its divisors is an integer number (5715420489).

Almost surely, 2^11430840977 is an apocalyptic number.

It is an amenable number.

11430840977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430840977 is an equidigital number, since it uses as much as digits as its factorization.

11430840977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 11430840977 in words is "eleven billion, four hundred thirty million, eight hundred forty thousand, nine hundred seventy-seven".