1321230232 has 32 divisors (see below), whose sum is σ = 2877628320. Its totient is φ = 556957440.

The previous prime is 1321230221. The next prime is 1321230263. The reversal of 1321230232 is 2320321231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189973 + ... + 196804.

It is an arithmetic number, because the mean of its divisors is an integer number (89925885).

Almost surely, 2^1321230232 is an apocalyptic number.

It is an amenable number.

1321230232 is an abundant number, since it is smaller than the sum of its proper divisors (1556398088).

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

1321230232 is a wasteful number, since it uses less digits than its factorization.

1321230232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386851 (or 386847 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1321230232 is about 36348.7308169075. The cubic root of 1321230232 is about 1097.3019917685.

Adding to 1321230232 its reverse (2320321231), we get a palindrome (3641551463).

Subtracting 1321230232 from its reverse (2320321231), we obtain a palindrome (999090999).

The spelling of 1321230232 in words is "one billion, three hundred twenty-one million, two hundred thirty thousand, two hundred thirty-two".