1312440102 has 24 divisors (see below), whose sum is σ = 2875574520. Its totient is φ = 432564000.

The previous prime is 1312440091. The next prime is 1312440121. The reversal of 1312440102 is 2010442131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 408024 + ... + 411227.

It is an arithmetic number, because the mean of its divisors is an integer number (119815605).

Almost surely, 2^1312440102 is an apocalyptic number.

1312440102 is an abundant number, since it is smaller than the sum of its proper divisors (1563134418).

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

1312440102 is a wasteful number, since it uses less digits than its factorization.

1312440102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819348 (or 819345 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1312440102 is about 36227.6151851043. The cubic root of 1312440102 is about 1094.8631291988.

Adding to 1312440102 its reverse (2010442131), we get a palindrome (3322882233).

The spelling of 1312440102 in words is "one billion, three hundred twelve million, four hundred forty thousand, one hundred two".