1153222123 has 2 divisors, whose sum is σ = 1153222124. Its totient is φ = 1153222122.

The previous prime is 1153222121. The next prime is 1153222151. The reversal of 1153222123 is 3212223511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153222123 - 2¹ = 1153222121 is a prime.

Together with 1153222121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1153222094 and 1153222103.

It is not a weakly prime, because it can be changed into another prime (1153222121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576611061 + 576611062.

It is an arithmetic number, because the mean of its divisors is an integer number (576611062).

Almost surely, 2^1153222123 is an apocalyptic number.

1153222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153222123 is an equidigital number, since it uses as much as digits as its factorization.

1153222123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 1153222123 is about 33959.1242967188. The cubic root of 1153222123 is about 1048.6671290253.

Adding to 1153222123 its reverse (3212223511), we get a palindrome (4365445634).

The spelling of 1153222123 in words is "one billion, one hundred fifty-three million, two hundred twenty-two thousand, one hundred twenty-three".