123012443233 has 4 divisors (see below), whose sum is σ = 124745012928. Its totient is φ = 121279873540.

The previous prime is 123012443201. The next prime is 123012443237. The reversal of 123012443233 is 332344210321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 332344210321 = 219943 ⋅1511047.

It is a cyclic number.

It is not a de Polignac number, because 123012443233 - 2⁵ = 123012443201 is a prime.

It is a super-2 number, since 2×123012443233² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123012443237) 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 in 3 ways as a sum of consecutive naturals, for example, 866284741 + ... + 866284882.

It is an arithmetic number, because the mean of its divisors is an integer number (31186253232).

Almost surely, 2^123012443233 is an apocalyptic number.

It is an amenable number.

123012443233 is a deficient number, since it is larger than the sum of its proper divisors (1732569695).

123012443233 is an equidigital number, since it uses as much as digits as its factorization.

123012443233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732569694.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 123012443233 its reverse (332344210321), we get a palindrome (455356653554).

The spelling of 123012443233 in words is "one hundred twenty-three billion, twelve million, four hundred forty-three thousand, two hundred thirty-three".