1231332430 has 16 divisors (see below), whose sum is σ = 2333051280. Its totient is φ = 466610112.

The previous prime is 1231332409. The next prime is 1231332433. The reversal of 1231332430 is 342331321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231332433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240159 + ... + 3240538.

It is an arithmetic number, because the mean of its divisors is an integer number (145815705).

Almost surely, 2^1231332430 is an apocalyptic number.

1231332430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231332430 is a deficient number, since it is larger than the sum of its proper divisors (1101718850).

1231332430 is a wasteful number, since it uses less digits than its factorization.

1231332430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480723.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1231332430 is about 35090.3466782533. The cubic root of 1231332430 is about 1071.8280190941.

Adding to 1231332430 its reverse (342331321), we get a palindrome (1573663751).

The spelling of 1231332430 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, four hundred thirty".