11123220439 has 2 divisors, whose sum is σ = 11123220440. Its totient is φ = 11123220438.

The previous prime is 11123220431. The next prime is 11123220481. The reversal of 11123220439 is 93402232111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11123220439 - 2³ = 11123220431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11123220431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561610219 + 5561610220.

It is an arithmetic number, because the mean of its divisors is an integer number (5561610220).

Almost surely, 2^11123220439 is an apocalyptic number.

11123220439 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123220439 is an equidigital number, since it uses as much as digits as its factorization.

11123220439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 11123220439 in words is "eleven billion, one hundred twenty-three million, two hundred twenty thousand, four hundred thirty-nine".