123303220132 has 24 divisors (see below), whose sum is σ = 228679771320. Its totient is φ = 57972687360.

The previous prime is 123303220069. The next prime is 123303220147. The reversal of 123303220132 is 231022303321.

It can be written as a sum of positive squares in 4 ways, for example, as 8479831396 + 114823388736 = 92086^2 + 338856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742119 + ... + 892942.

It is an arithmetic number, because the mean of its divisors is an integer number (9528323805).

Almost surely, 2^123303220132 is an apocalyptic number.

It is an amenable number.

123303220132 is a deficient number, since it is larger than the sum of its proper divisors (105376551188).

123303220132 is a wasteful number, since it uses less digits than its factorization.

123303220132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636191 (or 1636189 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 123303220132 its reverse (231022303321), we get a palindrome (354325523453).

The spelling of 123303220132 in words is "one hundred twenty-three billion, three hundred three million, two hundred twenty thousand, one hundred thirty-two".