1103440279 has 2 divisors, whose sum is σ = 1103440280. Its totient is φ = 1103440278.

The previous prime is 1103440259. The next prime is 1103440391. The reversal of 1103440279 is 9720443011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1103440279 - 2⁹ = 1103439767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103440279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103440259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551720139 + 551720140.

It is an arithmetic number, because the mean of its divisors is an integer number (551720140).

Almost surely, 2^1103440279 is an apocalyptic number.

1103440279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103440279 is an equidigital number, since it uses as much as digits as its factorization.

1103440279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1103440279 is about 33218.0715725642. The cubic root of 1103440279 is about 1033.3551565862.

The spelling of 1103440279 in words is "one billion, one hundred three million, four hundred forty thousand, two hundred seventy-nine".