1229330123 has 4 divisors (see below), whose sum is σ = 1404948720. Its totient is φ = 1053711528.

The previous prime is 1229330119. The next prime is 1229330131. The reversal of 1229330123 is 3210339221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3210339221 = 137 ⋅23433133.

It is a cyclic number.

It is not a de Polignac number, because 1229330123 - 2² = 1229330119 is a prime.

It is a super-2 number, since 2×1229330123² = 3022505102630390258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229330092 and 1229330101.

It is not an unprimeable number, because it can be changed into a prime (1229330623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87809288 + ... + 87809301.

It is an arithmetic number, because the mean of its divisors is an integer number (351237180).

Almost surely, 2^1229330123 is an apocalyptic number.

1229330123 is a deficient number, since it is larger than the sum of its proper divisors (175618597).

1229330123 is an equidigital number, since it uses as much as digits as its factorization.

1229330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175618596.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1229330123 is about 35061.8043317796. The cubic root of 1229330123 is about 1071.2467265474.

Adding to 1229330123 its reverse (3210339221), we get a palindrome (4439669344).

The spelling of 1229330123 in words is "one billion, two hundred twenty-nine million, three hundred thirty thousand, one hundred twenty-three".