1312638201382 has 32 divisors (see below), whose sum is σ = 2119807484640. Its totient is φ = 607367185920.

The previous prime is 1312638201373. The next prime is 1312638201383. The reversal of 1312638201382 is 2831028362131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312638201383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699844 + ... + 1764952.

It is an arithmetic number, because the mean of its divisors is an integer number (66243983895).

Almost surely, 2^{1312638201382} is an apocalyptic number.

1312638201382 is a deficient number, since it is larger than the sum of its proper divisors (807169283258).

1312638201382 is a wasteful number, since it uses less digits than its factorization.

1312638201382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065736.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 1312638201382 in words is "one trillion, three hundred twelve billion, six hundred thirty-eight million, two hundred one thousand, three hundred eighty-two".