1231600332 has 12 divisors (see below), whose sum is σ = 2873734136. Its totient is φ = 410533440.

The previous prime is 1231600327. The next prime is 1231600339. The reversal of 1231600332 is 2330061321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1231600299 and 1231600308.

It is not an unprimeable number, because it can be changed into a prime (1231600339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51316669 + ... + 51316692.

Almost surely, 2^1231600332 is an apocalyptic number.

1231600332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231600332 is an abundant number, since it is smaller than the sum of its proper divisors (1642133804).

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

1231600332 is a wasteful number, since it uses less digits than its factorization.

1231600332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102633368 (or 102633366 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1231600332 is about 35094.1637882996. The cubic root of 1231600332 is about 1071.9057462892.

Adding to 1231600332 its reverse (2330061321), we get a palindrome (3561661653).

The spelling of 1231600332 in words is "one billion, two hundred thirty-one million, six hundred thousand, three hundred thirty-two".