1121231303 has 2 divisors, whose sum is σ = 1121231304. Its totient is φ = 1121231302.

The previous prime is 1121231297. The next prime is 1121231317. The reversal of 1121231303 is 3031321211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121231303 - 2¹⁶ = 1121165767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121231383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560615651 + 560615652.

It is an arithmetic number, because the mean of its divisors is an integer number (560615652).

Almost surely, 2^1121231303 is an apocalyptic number.

1121231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121231303 is an equidigital number, since it uses as much as digits as its factorization.

1121231303 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 17.

The square root of 1121231303 is about 33484.7921152275. The cubic root of 1121231303 is about 1038.8792484670.

Adding to 1121231303 its reverse (3031321211), we get a palindrome (4152552514).

The spelling of 1121231303 in words is "one billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred three".