11285911021439 has 2 divisors, whose sum is σ = 11285911021440. Its totient is φ = 11285911021438.

The previous prime is 11285911021421. The next prime is 11285911021471. The reversal of 11285911021439 is 93412011958211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11285911021439 - 2¹² = 11285911017343 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11285911021393 and 11285911021402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11285911021409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642955510719 + 5642955510720.

It is an arithmetic number, because the mean of its divisors is an integer number (5642955510720).

Almost surely, 2^{11285911021439} is an apocalyptic number.

11285911021439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11285911021439 is an equidigital number, since it uses as much as digits as its factorization.

11285911021439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 47.

The spelling of 11285911021439 in words is "eleven trillion, two hundred eighty-five billion, nine hundred eleven million, twenty-one thousand, four hundred thirty-nine".