1230133220 has 48 divisors (see below), whose sum is σ = 2655773568. Its totient is φ = 478437120.

The previous prime is 1230133211. The next prime is 1230133231. The reversal of 1230133220 is 223310321.

It is a super-3 number, since 3×1230133220³ (a number of 28 digits) contains 333 as substring.

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, 97727 + ... + 109593.

It is an arithmetic number, because the mean of its divisors is an integer number (55328616).

Almost surely, 2^1230133220 is an apocalyptic number.

1230133220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230133220 is an abundant number, since it is smaller than the sum of its proper divisors (1425640348).

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

1230133220 is a wasteful number, since it uses less digits than its factorization.

1230133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12020 (or 12018 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230133220 is about 35073.2550528177. The cubic root of 1230133220 is about 1071.4799505181.

Adding to 1230133220 its reverse (223310321), we get a palindrome (1453443541).

The spelling of 1230133220 in words is "one billion, two hundred thirty million, one hundred thirty-three thousand, two hundred twenty".