1121310343 has 2 divisors, whose sum is σ = 1121310344. Its totient is φ = 1121310342.

The previous prime is 1121310319. The next prime is 1121310371. The reversal of 1121310343 is 3430131211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121310343 - 2¹⁷ = 1121179271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121310343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121310373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560655171 + 560655172.

It is an arithmetic number, because the mean of its divisors is an integer number (560655172).

Almost surely, 2^1121310343 is an apocalyptic number.

1121310343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121310343 is an equidigital number, since it uses as much as digits as its factorization.

1121310343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1121310343 is about 33485.9723317093. The cubic root of 1121310343 is about 1038.9036594534.

Adding to 1121310343 its reverse (3430131211), we get a palindrome (4551441554).

The spelling of 1121310343 in words is "one billion, one hundred twenty-one million, three hundred ten thousand, three hundred forty-three".