1312201082 has 4 divisors (see below), whose sum is σ = 1968301626. Its totient is φ = 656100540.

The previous prime is 1312201081. The next prime is 1312201127. The reversal of 1312201082 is 2801022131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1058786521 + 253414561 = 32539^2 + 15919^2 .

It is not an unprimeable number, because it can be changed into a prime (1312201081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328050269 + ... + 328050272.

Almost surely, 2^1312201082 is an apocalyptic number.

1312201082 is a deficient number, since it is larger than the sum of its proper divisors (656100544).

1312201082 is an equidigital number, since it uses as much as digits as its factorization.

1312201082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656100543.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1312201082 is about 36224.3161702191. The cubic root of 1312201082 is about 1094.7966601150.

The spelling of 1312201082 in words is "one billion, three hundred twelve million, two hundred one thousand, eighty-two".