11154402289 has 2 divisors, whose sum is σ = 11154402290. Its totient is φ = 11154402288.

The previous prime is 11154402251. The next prime is 11154402331. The reversal of 11154402289 is 98220445111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11148192225 + 6210064 = 105585^2 + 2492^2 .

It is a cyclic number.

It is not a de Polignac number, because 11154402289 - 2¹⁵ = 11154369521 is a prime.

It is not a weakly prime, because it can be changed into another prime (11154402209) 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, 5577201144 + 5577201145.

It is an arithmetic number, because the mean of its divisors is an integer number (5577201145).

Almost surely, 2^11154402289 is an apocalyptic number.

It is an amenable number.

11154402289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154402289 is an equidigital number, since it uses as much as digits as its factorization.

11154402289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 11154402289 in words is "eleven billion, one hundred fifty-four million, four hundred two thousand, two hundred eighty-nine".