123321435221204 has 48 divisors (see below), whose sum is σ = 243386677195200. Its totient is φ = 54186273043200.

The previous prime is 123321435221191. The next prime is 123321435221267. The reversal of 123321435221204 is 402122534123321.

It is a super-2 number, since 2×123321435221204² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313381334 + ... + 313774605.

It is an arithmetic number, because the mean of its divisors is an integer number (5070555774900).

Almost surely, 2^{123321435221204} is an apocalyptic number.

It is an amenable number.

123321435221204 is a deficient number, since it is larger than the sum of its proper divisors (120065241973996).

123321435221204 is a wasteful number, since it uses less digits than its factorization.

123321435221204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627156104 (or 627156102 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 123321435221204 its reverse (402122534123321), we get a palindrome (525443969344525).

The spelling of 123321435221204 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, four hundred thirty-five million, two hundred twenty-one thousand, two hundred four".