1381082141138 has 64 divisors (see below), whose sum is σ = 2399507712000. Its totient is φ = 583968528000.

The previous prime is 1381082141113. The next prime is 1381082141239. The reversal of 1381082141138 is 8311412801831.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1381082141095 and 1381082141104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424816013 + ... + 424819263.

It is an arithmetic number, because the mean of its divisors is an integer number (37492308000).

Almost surely, 2^{1381082141138} is an apocalyptic number.

1381082141138 is a deficient number, since it is larger than the sum of its proper divisors (1018425570862).

1381082141138 is a wasteful number, since it uses less digits than its factorization.

1381082141138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its (nonzero) digits is 36864, while the sum is 41.

Adding to 1381082141138 its reverse (8311412801831), we get a palindrome (9692494942969).

The spelling of 1381082141138 in words is "one trillion, three hundred eighty-one billion, eighty-two million, one hundred forty-one thousand, one hundred thirty-eight".