123230311033 has 4 divisors (see below), whose sum is σ = 123249968128. Its totient is φ = 123210653940.

The previous prime is 123230310997. The next prime is 123230311051. The reversal of 123230311033 is 330113032321.

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: 330113032321 = 51287 ⋅6436583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123230311033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123230310995 and 123230311013.

It is not an unprimeable number, because it can be changed into a prime (123230311073) 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, 9819141 + ... + 9831682.

It is an arithmetic number, because the mean of its divisors is an integer number (30812492032).

Almost surely, 2^123230311033 is an apocalyptic number.

It is an amenable number.

123230311033 is a deficient number, since it is larger than the sum of its proper divisors (19657095).

123230311033 is an equidigital number, since it uses as much as digits as its factorization.

123230311033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19657094.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 123230311033 its reverse (330113032321), we get a palindrome (453343343354).

The spelling of 123230311033 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred eleven thousand, thirty-three".