1381131838082 has 16 divisors (see below), whose sum is σ = 2079686691000. Its totient is φ = 687904398720.

The previous prime is 1381131838067. The next prime is 1381131838127. The reversal of 1381131838082 is 2808381311831.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1372484883961 + 8646954121 = 1171531^2 + 92989^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1542044 + ... + 2267192.

Almost surely, 2^{1381131838082} is an apocalyptic number.

1381131838082 is a deficient number, since it is larger than the sum of its proper divisors (698554852918).

1381131838082 is a wasteful number, since it uses less digits than its factorization.

1381131838082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728821.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 1381131838082 in words is "one trillion, three hundred eighty-one billion, one hundred thirty-one million, eight hundred thirty-eight thousand, eighty-two".