31440413340211 has 8 divisors (see below), whose sum is σ = 31503268924848. Its totient is φ = 31377600768000.

The previous prime is 31440413340199. The next prime is 31440413340227. The reversal of 31440413340211 is 11204331404413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31440413340211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31440413340251) 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, 9289525 + ... + 12213766.

It is an arithmetic number, because the mean of its divisors is an integer number (3937908615606).

Almost surely, 2^{31440413340211} is an apocalyptic number.

31440413340211 is a deficient number, since it is larger than the sum of its proper divisors (62855584637).

31440413340211 is a wasteful number, since it uses less digits than its factorization.

31440413340211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21506213.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 31440413340211 its reverse (11204331404413), we get a palindrome (42644744744624).

The spelling of 31440413340211 in words is "thirty-one trillion, four hundred forty billion, four hundred thirteen million, three hundred forty thousand, two hundred eleven".