123030020033 has 4 divisors (see below), whose sum is σ = 123266162628. Its totient is φ = 122793877440.

The previous prime is 123030020027. The next prime is 123030020041. The reversal of 123030020033 is 330020030321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37875776689 + 85154243344 = 194617^2 + 291812^2 .

It is a cyclic number.

It is not a de Polignac number, because 123030020033 - 2¹⁰ = 123030019009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123030019993 and 123030020020.

It is not an unprimeable number, because it can be changed into a prime (123030020053) 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, 118070516 + ... + 118071557.

It is an arithmetic number, because the mean of its divisors is an integer number (30816540657).

Almost surely, 2^123030020033 is an apocalyptic number.

It is an amenable number.

123030020033 is a deficient number, since it is larger than the sum of its proper divisors (236142595).

123030020033 is an equidigital number, since it uses as much as digits as its factorization.

123030020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236142594.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 123030020033 its reverse (330020030321), we get a palindrome (453050050354).

The spelling of 123030020033 in words is "one hundred twenty-three billion, thirty million, twenty thousand, thirty-three".