1232021130 has 32 divisors (see below), whose sum is σ = 2958064704. Its totient is φ = 328404096.

The previous prime is 1232021111. The next prime is 1232021137. The reversal of 1232021130 is 311202321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1232021137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81637 + ... + 95543.

It is an arithmetic number, because the mean of its divisors is an integer number (92439522).

Almost surely, 2^1232021130 is an apocalyptic number.

1232021130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232021130 is an abundant number, since it is smaller than the sum of its proper divisors (1726043574).

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

1232021130 is a wasteful number, since it uses less digits than its factorization.

1232021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16870.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1232021130 is about 35100.1585466505. The cubic root of 1232021130 is about 1072.0278108967.

Adding to 1232021130 its reverse (311202321), we get a palindrome (1543223451).

The spelling of 1232021130 in words is "one billion, two hundred thirty-two million, twenty-one thousand, one hundred thirty".