1312052018 has 8 divisors (see below), whose sum is σ = 1969657500. Its totient is φ = 655499520.

The previous prime is 1312052009. The next prime is 1312052023. The reversal of 1312052018 is 8102502131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1273276489 + 38775529 = 35683^2 + 6227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1312051984 and 1312052002.

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, 260123 + ... + 265118.

Almost surely, 2^1312052018 is an apocalyptic number.

1312052018 is a deficient number, since it is larger than the sum of its proper divisors (657605482).

1312052018 is a wasteful number, since it uses less digits than its factorization.

1312052018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526492.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 1312052018 is about 36222.2585988229. The cubic root of 1312052018 is about 1094.7552028131.

Adding to 1312052018 its reverse (8102502131), we get a palindrome (9414554149).

The spelling of 1312052018 in words is "one billion, three hundred twelve million, fifty-two thousand, eighteen".