123610213 has 6 divisors (see below), whose sum is σ = 131309426. Its totient is φ = 116338752.

The previous prime is 123610199. The next prime is 123610241. The reversal of 123610213 is 312016321.

It can be written as a sum of positive squares in 3 ways, for example, as 96079204 + 27531009 = 9802^2 + 5247^2 .

It is not a de Polignac number, because 123610213 - 2⁹ = 123609701 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 (123610013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213570 + ... + 214147.

Almost surely, 2^123610213 is an apocalyptic number.

It is an amenable number.

123610213 is a deficient number, since it is larger than the sum of its proper divisors (7699213).

123610213 is an equidigital number, since it uses as much as digits as its factorization.

123610213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427751 (or 427734 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 123610213 is about 11118.0129969343. The cubic root of 123610213 is about 498.1400403461.

Adding to 123610213 its reverse (312016321), we get a palindrome (435626534).

It can be divided in two parts, 1236 and 10213, that added together give a square (11449 = 107²).

The spelling of 123610213 in words is "one hundred twenty-three million, six hundred ten thousand, two hundred thirteen".