123213607 has 4 divisors (see below), whose sum is σ = 134414856. Its totient is φ = 112012360.

The previous prime is 123213593. The next prime is 123213611. The reversal of 123213607 is 706312321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123213607 - 2⁷ = 123213479 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 (123213617) 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, 5600608 + ... + 5600629.

It is an arithmetic number, because the mean of its divisors is an integer number (33603714).

Almost surely, 2^123213607 is an apocalyptic number.

123213607 is a deficient number, since it is larger than the sum of its proper divisors (11201249).

123213607 is a wasteful number, since it uses less digits than its factorization.

123213607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201248.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 123213607 is about 11100.1624762884. The cubic root of 123213607 is about 497.6067052248.

Adding to 123213607 its reverse (706312321), we get a palindrome (829525928).

The spelling of 123213607 in words is "one hundred twenty-three million, two hundred thirteen thousand, six hundred seven".