123022213 has 4 divisors (see below), whose sum is σ = 123192160. Its totient is φ = 122852268.

The previous prime is 123022201. The next prime is 123022223. The reversal of 123022213 is 312220321.

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: 312220321 = 7 ⋅44602903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123022213 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 (123022223) 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, 83883 + ... + 85336.

It is an arithmetic number, because the mean of its divisors is an integer number (30798040).

Almost surely, 2^123022213 is an apocalyptic number.

It is an amenable number.

123022213 is a deficient number, since it is larger than the sum of its proper divisors (169947).

123022213 is an equidigital number, since it uses as much as digits as its factorization.

123022213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169946.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123022213 is about 11091.5379005799. The cubic root of 123022213 is about 497.3489190495.

Adding to 123022213 its reverse (312220321), we get a palindrome (435242534).

The spelling of 123022213 in words is "one hundred twenty-three million, twenty-two thousand, two hundred thirteen".