1231301132 has 12 divisors (see below), whose sum is σ = 2155105680. Its totient is φ = 615556656.

The previous prime is 1231301119. The next prime is 1231301209. The reversal of 1231301132 is 2311031321.

It is a super-2 number, since 2×1231301132² = 3032204955328962848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1231301132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11969 + ... + 51047.

It is an arithmetic number, because the mean of its divisors is an integer number (179592140).

Almost surely, 2^1231301132 is an apocalyptic number.

It is an amenable number.

1231301132 is a deficient number, since it is larger than the sum of its proper divisors (923804548).

1231301132 is a wasteful number, since it uses less digits than its factorization.

1231301132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46960 (or 46958 counting only the distinct ones).

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

The square root of 1231301132 is about 35089.9007123132. The cubic root of 1231301132 is about 1071.8189377779.

Adding to 1231301132 its reverse (2311031321), we get a palindrome (3542332453).

The spelling of 1231301132 in words is "one billion, two hundred thirty-one million, three hundred one thousand, one hundred thirty-two".