1111555343 has 2 divisors, whose sum is σ = 1111555344. Its totient is φ = 1111555342.

The previous prime is 1111555337. The next prime is 1111555351. The reversal of 1111555343 is 3435551111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111555343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111455343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555777671 + 555777672.

It is an arithmetic number, because the mean of its divisors is an integer number (555777672).

Almost surely, 2^1111555343 is an apocalyptic number.

1111555343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111555343 is an equidigital number, since it uses as much as digits as its factorization.

1111555343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 29.

The square root of 1111555343 is about 33339.9961457706. The cubic root of 1111555343 is about 1035.8821834363.

The spelling of 1111555343 in words is "one billion, one hundred eleven million, five hundred fifty-five thousand, three hundred forty-three".