1381320068 has 12 divisors (see below), whose sum is σ = 2435763792. Its totient is φ = 685387560.

The previous prime is 1381320043. The next prime is 1381320077. The reversal of 1381320068 is 8600231831.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 1317530 + ... + 1318577.

It is an arithmetic number, because the mean of its divisors is an integer number (202980316).

Almost surely, 2^1381320068 is an apocalyptic number.

It is an amenable number.

1381320068 is a deficient number, since it is larger than the sum of its proper divisors (1054443724).

1381320068 is a wasteful number, since it uses less digits than its factorization.

1381320068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636242 (or 2636240 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1381320068 is about 37166.1145130884. The cubic root of 1381320068 is about 1113.6911634605.

Adding to 1381320068 its reverse (8600231831), we get a palindrome (9981551899).

The spelling of 1381320068 in words is "one billion, three hundred eighty-one million, three hundred twenty thousand, sixty-eight".