123123533105 has 8 divisors (see below), whose sum is σ = 147900406464. Its totient is φ = 98397382000.

The previous prime is 123123533101. The next prime is 123123533119. The reversal of 123123533105 is 501335321321.

It is a happy number.

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

It is not a de Polignac number, because 123123533105 - 2² = 123123533101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123123533101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12675221 + ... + 12684930.

It is an arithmetic number, because the mean of its divisors is an integer number (18487550808).

Almost surely, 2^123123533105 is an apocalyptic number.

It is an amenable number.

123123533105 is a deficient number, since it is larger than the sum of its proper divisors (24776873359).

123123533105 is an equidigital number, since it uses as much as digits as its factorization.

123123533105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25361127.

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 123123533105 its reverse (501335321321), we get a palindrome (624458854426).

The spelling of 123123533105 in words is "one hundred twenty-three billion, one hundred twenty-three million, five hundred thirty-three thousand, one hundred five".