123020213 has 8 divisors (see below), whose sum is σ = 127248576. Its totient is φ = 118850400.

The previous prime is 123020207. The next prime is 123020221. The reversal of 123020213 is 312020321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123020213 - 2²⁰ = 121971637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10343 + ... + 18788.

It is an arithmetic number, because the mean of its divisors is an integer number (15906072).

Almost surely, 2^123020213 is an apocalyptic number.

It is an amenable number.

123020213 is a deficient number, since it is larger than the sum of its proper divisors (4228363).

123020213 is a wasteful number, since it uses less digits than its factorization.

123020213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29275.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 123020213 is about 11091.4477413907. The cubic root of 123020213 is about 497.3462238635.

Adding to 123020213 its reverse (312020321), we get a palindrome (435040534).

The spelling of 123020213 in words is "one hundred twenty-three million, twenty thousand, two hundred thirteen".