123445220234 has 8 divisors (see below), whose sum is σ = 211620377568. Its totient is φ = 52905094380.

The previous prime is 123445220179. The next prime is 123445220237. The reversal of 123445220234 is 432022544321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123445220234.

It is not an unprimeable number, because it can be changed into a prime (123445220237) 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, 4408757852 + ... + 4408757879.

It is an arithmetic number, because the mean of its divisors is an integer number (26452547196).

Almost surely, 2^123445220234 is an apocalyptic number.

123445220234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123445220234 is a deficient number, since it is larger than the sum of its proper divisors (88175157334).

123445220234 is an equidigital number, since it uses as much as digits as its factorization.

123445220234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817515740.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 123445220234 its reverse (432022544321), we get a palindrome (555467764555).

The spelling of 123445220234 in words is "one hundred twenty-three billion, four hundred forty-five million, two hundred twenty thousand, two hundred thirty-four".