1230311132 has 12 divisors (see below), whose sum is σ = 2163865200. Its totient is φ = 612063936.

The previous prime is 1230311111. The next prime is 1230311143. The reversal of 1230311132 is 2311130321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230311132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772013 + ... + 773604.

It is an arithmetic number, because the mean of its divisors is an integer number (180322100).

Almost surely, 2^1230311132 is an apocalyptic number.

It is an amenable number.

1230311132 is a deficient number, since it is larger than the sum of its proper divisors (933554068).

1230311132 is a wasteful number, since it uses less digits than its factorization.

1230311132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545820 (or 1545818 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1230311132 is about 35075.7912526574. The cubic root of 1230311132 is about 1071.5316034471.

Adding to 1230311132 its reverse (2311130321), we get a palindrome (3541441453).

The spelling of 1230311132 in words is "one billion, two hundred thirty million, three hundred eleven thousand, one hundred thirty-two".