123130213033 has 4 divisors (see below), whose sum is σ = 123139156420. Its totient is φ = 123121269648.

The previous prime is 123130213001. The next prime is 123130213103. The reversal of 123130213033 is 330312031321.

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 82321364889 + 40808848144 = 286917^2 + 202012^2 .

It is a cyclic number.

It is not a de Polignac number, because 123130213033 - 2⁵ = 123130213001 is a prime.

It is a super-2 number, since 2×123130213033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123130212995 and 123130213013.

It is not an unprimeable number, because it can be changed into a prime (123130213133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4451010 + ... + 4478587.

It is an arithmetic number, because the mean of its divisors is an integer number (30784789105).

Almost surely, 2^123130213033 is an apocalyptic number.

It is an amenable number.

123130213033 is a deficient number, since it is larger than the sum of its proper divisors (8943387).

123130213033 is an equidigital number, since it uses as much as digits as its factorization.

123130213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8943386.

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

Adding to 123130213033 its reverse (330312031321), we get a palindrome (453442244354).

The spelling of 123130213033 in words is "one hundred twenty-three billion, one hundred thirty million, two hundred thirteen thousand, thirty-three".