1101111439 has 2 divisors, whose sum is σ = 1101111440. Its totient is φ = 1101111438.

The previous prime is 1101111391. The next prime is 1101111443. The reversal of 1101111439 is 9341111011.

It is a strong prime.

It is an emirp because it is prime and its reverse (9341111011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1101111439 - 2¹³ = 1101103247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101118439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555719 + 550555720.

It is an arithmetic number, because the mean of its divisors is an integer number (550555720).

Almost surely, 2^1101111439 is an apocalyptic number.

1101111439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111439 is an equidigital number, since it uses as much as digits as its factorization.

1101111439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The square root of 1101111439 is about 33182.9992466022. Note that the first 3 decimals coincide. The cubic root of 1101111439 is about 1032.6276700564.

The spelling of 1101111439 in words is "one billion, one hundred one million, one hundred eleven thousand, four hundred thirty-nine".