123243102 has 12 divisors (see below), whose sum is σ = 267026760. Its totient is φ = 41081028.

The previous prime is 123243091. The next prime is 123243103. The reversal of 123243102 is 201342321.

123243102 is a `hidden beast` number, since 1 + 232 + 431 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6846839 = 123243102 / (1 + 2 + 3 + 2 + 4 + 3 + 1 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243103) 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, 3423402 + ... + 3423437.

It is an arithmetic number, because the mean of its divisors is an integer number (22252230).

Almost surely, 2^123243102 is an apocalyptic number.

123243102 is an abundant number, since it is smaller than the sum of its proper divisors (143783658).

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

123243102 is a wasteful number, since it uses less digits than its factorization.

123243102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6846847 (or 6846844 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123243102 is about 11101.4909809449. The cubic root of 123243102 is about 497.6464079253.

Adding to 123243102 its reverse (201342321), we get a palindrome (324585423).

The spelling of 123243102 in words is "one hundred twenty-three million, two hundred forty-three thousand, one hundred two".