1233123019 has 2 divisors, whose sum is σ = 1233123020. Its totient is φ = 1233123018.

The previous prime is 1233122993. The next prime is 1233123037. The reversal of 1233123019 is 9103213321.

It is a strong prime.

It is an emirp because it is prime and its reverse (9103213321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1233123019 - 2²⁹ = 696252107 is a prime.

It is a super-2 number, since 2×1233123019² = 3041184759975348722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1233122984 and 1233123002.

It is not a weakly prime, because it can be changed into another prime (1233123049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616561509 + 616561510.

It is an arithmetic number, because the mean of its divisors is an integer number (616561510).

Almost surely, 2^1233123019 is an apocalyptic number.

1233123019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233123019 is an equidigital number, since it uses as much as digits as its factorization.

1233123019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1233123019 is about 35115.8513922132. The cubic root of 1233123019 is about 1072.3473139844.

The spelling of 1233123019 in words is "one billion, two hundred thirty-three million, one hundred twenty-three thousand, nineteen".