1232003221020 has 144 divisors (see below), whose sum is σ = 4390411570272. Its totient is φ = 275693022720.

The previous prime is 1232003221003. The next prime is 1232003221027. The reversal of 1232003221020 is 201223002321.

1232003221020 is a `hidden beast` number, since 1 + 2 + 320 + 0 + 322 + 1 + 0 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1232003220984 and 1232003221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232003221027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23905947 + ... + 23957426.

It is an arithmetic number, because the mean of its divisors is an integer number (30488969238).

Almost surely, 2^{1232003221020} is an apocalyptic number.

1232003221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232003221020 is an abundant number, since it is smaller than the sum of its proper divisors (3158408349252).

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

1232003221020 is a wasteful number, since it uses less digits than its factorization.

1232003221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47863412 (or 47863407 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1232003221020 its reverse (201223002321), we get a palindrome (1433226223341).

The spelling of 1232003221020 in words is "one trillion, two hundred thirty-two billion, three million, two hundred twenty-one thousand, twenty".