123013206 has 24 divisors (see below), whose sum is σ = 270509304. Its totient is φ = 40392000.

The previous prime is 123013199. The next prime is 123013213. The reversal of 123013206 is 602310321.

It is an interprime number because it is at equal distance from previous prime (123013199) and next prime (123013213).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49795 + ... + 52206.

It is an arithmetic number, because the mean of its divisors is an integer number (11271221).

Almost surely, 2^123013206 is an apocalyptic number.

123013206 is an abundant number, since it is smaller than the sum of its proper divisors (147496098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123013206 is a wasteful number, since it uses less digits than its factorization.

123013206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102076 (or 102073 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 123013206 is about 11091.1318628894. The cubic root of 123013206 is about 497.3367810490.

Adding to 123013206 its reverse (602310321), we get a palindrome (725323527).

The spelling of 123013206 in words is "one hundred twenty-three million, thirteen thousand, two hundred six".