123200312234 has 4 divisors (see below), whose sum is σ = 184800468354. Its totient is φ = 61600156116.

The previous prime is 123200312227. The next prime is 123200312239. The reversal of 123200312234 is 432213002321.

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., 107746093009 + 15454219225 = 328247^2 + 124315^2 .

It is not an unprimeable number, because it can be changed into a prime (123200312239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800078057 + ... + 30800078060.

Almost surely, 2^123200312234 is an apocalyptic number.

123200312234 is a deficient number, since it is larger than the sum of its proper divisors (61600156120).

123200312234 is an equidigital number, since it uses as much as digits as its factorization.

123200312234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61600156119.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123200312234 its reverse (432213002321), we get a palindrome (555413314555).

The spelling of 123200312234 in words is "one hundred twenty-three billion, two hundred million, three hundred twelve thousand, two hundred thirty-four".