1223123203332 has 72 divisors (see below), whose sum is σ = 3183604078200. Its totient is φ = 395702599680.

The previous prime is 1223123203319. The next prime is 1223123203381. The reversal of 1223123203332 is 2333023213221.

1223123203332 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 1 + 2 + 320 + 3 + 332 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 210134016 + 1222913069316 = 14496^2 + 1105854^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223123203296 and 1223123203305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1861957 + ... + 2431692.

Almost surely, 2^{1223123203332} is an apocalyptic number.

1223123203332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223123203332 is an abundant number, since it is smaller than the sum of its proper divisors (1960480874868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223123203332 is a wasteful number, since it uses less digits than its factorization.

1223123203332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293893 (or 4293888 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 1223123203332 its reverse (2333023213221), we get a palindrome (3556146416553).

The spelling of 1223123203332 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, two hundred three thousand, three hundred thirty-two".