1220143230 has 32 divisors (see below), whose sum is σ = 3253716000. Its totient is φ = 325371456.

The previous prime is 1220143219. The next prime is 1220143259. The reversal of 1220143230 is 323410221.

1220143230 is a `hidden beast` number, since 1 + 2 + 201 + 432 + 30 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259255 + ... + 2259794.

It is an arithmetic number, because the mean of its divisors is an integer number (101678625).

Almost surely, 2^1220143230 is an apocalyptic number.

1220143230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220143230 is an abundant number, since it is smaller than the sum of its proper divisors (2033572770).

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

1220143230 is a wasteful number, since it uses less digits than its factorization.

1220143230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519065 (or 4519059 counting only the distinct ones).

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

The square root of 1220143230 is about 34930.5486644570. The cubic root of 1220143230 is about 1068.5715442266.

Adding to 1220143230 its reverse (323410221), we get a palindrome (1543553451).

The spelling of 1220143230 in words is "one billion, two hundred twenty million, one hundred forty-three thousand, two hundred thirty".