1440131211138 has 16 divisors (see below), whose sum is σ = 2881363050720. Its totient is φ = 479860298976.

The previous prime is 1440131211137. The next prime is 1440131211193. The reversal of 1440131211138 is 8311121310441.

It is not an unprimeable number, because it can be changed into a prime (1440131211133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45842508 + ... + 45873911.

It is an arithmetic number, because the mean of its divisors is an integer number (180085190670).

Almost surely, 2^{1440131211138} is an apocalyptic number.

1440131211138 is an abundant number, since it is smaller than the sum of its proper divisors (1441231839582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1440131211138 is a wasteful number, since it uses less digits than its factorization.

1440131211138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91719041.

The product of its (nonzero) digits is 2304, while the sum is 30.

Adding to 1440131211138 its reverse (8311121310441), we get a palindrome (9751252521579).

The spelling of 1440131211138 in words is "one trillion, four hundred forty billion, one hundred thirty-one million, two hundred eleven thousand, one hundred thirty-eight".