1233201020 has 12 divisors (see below), whose sum is σ = 2589722184. Its totient is φ = 493280400.

The previous prime is 1233201019. The next prime is 1233201041. The reversal of 1233201020 is 201023321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1233200986 and 1233201004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30830006 + ... + 30830045.

It is an arithmetic number, because the mean of its divisors is an integer number (215810182).

Almost surely, 2^1233201020 is an apocalyptic number.

1233201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233201020 is an abundant number, since it is smaller than the sum of its proper divisors (1356521164).

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

1233201020 is a wasteful number, since it uses less digits than its factorization.

1233201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61660060 (or 61660058 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1233201020 is about 35116.9619984417. The cubic root of 1233201020 is about 1072.3699238938.

Adding to 1233201020 its reverse (201023321), we get a palindrome (1434224341).

The spelling of 1233201020 in words is "one billion, two hundred thirty-three million, two hundred one thousand, twenty".