123012213 has 16 divisors (see below), whose sum is σ = 173568000. Its totient is φ = 77278320.

The previous prime is 123012203. The next prime is 123012223. The reversal of 123012213 is 312210321.

It is an interprime number because it is at equal distance from previous prime (123012203) and next prime (123012223).

It is not a de Polignac number, because 123012213 - 2⁸ = 123011957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123012192 and 123012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5238 + ... + 16536.

It is an arithmetic number, because the mean of its divisors is an integer number (10848000).

Almost surely, 2^123012213 is an apocalyptic number.

It is an amenable number.

123012213 is a deficient number, since it is larger than the sum of its proper divisors (50555787).

123012213 is a wasteful number, since it uses less digits than its factorization.

123012213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11512.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123012213 is about 11091.0870973048. The cubic root of 123012213 is about 497.3354428275.

Adding to 123012213 its reverse (312210321), we get a palindrome (435222534).

The spelling of 123012213 in words is "one hundred twenty-three million, twelve thousand, two hundred thirteen".