123002003213 has 4 divisors (see below), whose sum is σ = 123074486940. Its totient is φ = 122929519488.

The previous prime is 123002003207. The next prime is 123002003227. The reversal of 123002003213 is 312300200321.

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 120271627204 + 2730376009 = 346802^2 + 52253^2 .

It is a cyclic number.

It is not a de Polignac number, because 123002003213 - 2⁴ = 123002003197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123002003191 and 123002003200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002003203) 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, 36239318 + ... + 36242711.

It is an arithmetic number, because the mean of its divisors is an integer number (30768621735).

Almost surely, 2^123002003213 is an apocalyptic number.

It is an amenable number.

123002003213 is a deficient number, since it is larger than the sum of its proper divisors (72483727).

123002003213 is an equidigital number, since it uses as much as digits as its factorization.

123002003213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72483726.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123002003213 its reverse (312300200321), we get a palindrome (435302203534).

It can be divided in two parts, 12300200321 and 3, that multiplied together give a palindrome (36900600963).

The spelling of 123002003213 in words is "one hundred twenty-three billion, two million, three thousand, two hundred thirteen".