40130443442321 has 8 divisors (see below), whose sum is σ = 40887881360424. Its totient is φ = 39373015144320.

The previous prime is 40130443442317. The next prime is 40130443442357. The reversal of 40130443442321 is 12324434403104.

It can be written as a sum of positive squares in 4 ways, for example, as 3225486689296 + 36904956753025 = 1795964^2 + 6074945^2 .

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 40130443442321 - 2² = 40130443442317 is a prime.

It is a super-2 number, since 2×40130443442321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40130443042321) 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, 6312131 + ... + 10959191.

It is an arithmetic number, because the mean of its divisors is an integer number (5110985170053).

Almost surely, 2^{40130443442321} is an apocalyptic number.

It is an amenable number.

40130443442321 is a deficient number, since it is larger than the sum of its proper divisors (757437918103).

40130443442321 is a wasteful number, since it uses less digits than its factorization.

40130443442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810051.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 40130443442321 its reverse (12324434403104), we get a palindrome (52454877845425).

The spelling of 40130443442321 in words is "forty trillion, one hundred thirty billion, four hundred forty-three million, four hundred forty-two thousand, three hundred twenty-one".