40144443133121 has 8 divisors (see below), whose sum is σ = 42267052090080. Its totient is φ = 38022808529088.

The previous prime is 40144443133087. The next prime is 40144443133241. The reversal of 40144443133121 is 12133134444104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40144443133121 - 2⁶ = 40144443133057 is a prime.

It is a super-2 number, since 2×40144443133121² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40144443133021) 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, 243503651 + ... + 243668456.

It is an arithmetic number, because the mean of its divisors is an integer number (5283381511260).

Almost surely, 2^{40144443133121} is an apocalyptic number.

It is an amenable number.

40144443133121 is a deficient number, since it is larger than the sum of its proper divisors (2122608956959).

40144443133121 is a wasteful number, since it uses less digits than its factorization.

40144443133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487176463.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 40144443133121 its reverse (12133134444104), we get a palindrome (52277577577225).

The spelling of 40144443133121 in words is "forty trillion, one hundred forty-four billion, four hundred forty-three million, one hundred thirty-three thousand, one hundred twenty-one".