1232521130 has 8 divisors (see below), whose sum is σ = 2218538052. Its totient is φ = 493008448.

The previous prime is 1232521111. The next prime is 1232521139. The reversal of 1232521130 is 311252321.

It can be written as a sum of positive squares in 2 ways, for example, as 1202633041 + 29888089 = 34679^2 + 5467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1232521139) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61626047 + ... + 61626066.

Almost surely, 2^1232521130 is an apocalyptic number.

1232521130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232521130 is a deficient number, since it is larger than the sum of its proper divisors (986016922).

1232521130 is a wasteful number, since it uses less digits than its factorization.

1232521130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123252120.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1232521130 is about 35107.2802991061. The cubic root of 1232521130 is about 1072.1728142026.

Adding to 1232521130 its reverse (311252321), we get a palindrome (1543773451).

The spelling of 1232521130 in words is "one billion, two hundred thirty-two million, five hundred twenty-one thousand, one hundred thirty".