1220333123 has 2 divisors, whose sum is σ = 1220333124. Its totient is φ = 1220333122.

The previous prime is 1220333113. The next prime is 1220333129. The reversal of 1220333123 is 3213330221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220333123 - 2¹⁴ = 1220316739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220333095 and 1220333104.

It is not a weakly prime, because it can be changed into another prime (1220333129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610166561 + 610166562.

It is an arithmetic number, because the mean of its divisors is an integer number (610166562).

Almost surely, 2^1220333123 is an apocalyptic number.

1220333123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220333123 is an equidigital number, since it uses as much as digits as its factorization.

1220333123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1220333123 is about 34933.2667095421. The cubic root of 1220333123 is about 1068.6269758965.

Adding to 1220333123 its reverse (3213330221), we get a palindrome (4433663344).

The spelling of 1220333123 in words is "one billion, two hundred twenty million, three hundred thirty-three thousand, one hundred twenty-three".