123413242 has 4 divisors (see below), whose sum is σ = 185119866. Its totient is φ = 61706620.

The previous prime is 123413231. The next prime is 123413243. The reversal of 123413242 is 242314321.

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

It can be written as a sum of positive squares in only one way, i.e., 74287161 + 49126081 = 8619^2 + 7009^2 .

It is not an unprimeable number, because it can be changed into a prime (123413243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30853309 + ... + 30853312.

Almost surely, 2^123413242 is an apocalyptic number.

123413242 is a deficient number, since it is larger than the sum of its proper divisors (61706624).

123413242 is an equidigital number, since it uses as much as digits as its factorization.

123413242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61706623.

The product of its digits is 1152, while the sum is 22.

The square root of 123413242 is about 11109.1512727121. The cubic root of 123413242 is about 497.8753068131.

Adding to 123413242 its reverse (242314321), we get a palindrome (365727563).

The spelling of 123413242 in words is "one hundred twenty-three million, four hundred thirteen thousand, two hundred forty-two".