1223120303 has 2 divisors, whose sum is σ = 1223120304. Its totient is φ = 1223120302.

The previous prime is 1223120299. The next prime is 1223120377. The reversal of 1223120303 is 3030213221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223120303 - 2² = 1223120299 is a prime.

It is a super-2 number, since 2×1223120303² = 2992046551221623618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223120203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611560151 + 611560152.

It is an arithmetic number, because the mean of its divisors is an integer number (611560152).

Almost surely, 2^1223120303 is an apocalyptic number.

1223120303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223120303 is an equidigital number, since it uses as much as digits as its factorization.

1223120303 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 17.

The square root of 1223120303 is about 34973.1368767516. The cubic root of 1223120303 is about 1069.4399208767.

Adding to 1223120303 its reverse (3030213221), we get a palindrome (4253333524).

The spelling of 1223120303 in words is "one billion, two hundred twenty-three million, one hundred twenty thousand, three hundred three".