31440140200213 has 8 divisors (see below), whose sum is σ = 31976090926560. Its totient is φ = 30904291707120.

The previous prime is 31440140200207. The next prime is 31440140200279. The reversal of 31440140200213 is 31200204104413.

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 31440140200213 - 2²⁵ = 31440106645781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440120200213) 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, 24937878 + ... + 26168263.

It is an arithmetic number, because the mean of its divisors is an integer number (3997011365820).

Almost surely, 2^{31440140200213} is an apocalyptic number.

It is an amenable number.

31440140200213 is a deficient number, since it is larger than the sum of its proper divisors (535950726347).

31440140200213 is a wasteful number, since it uses less digits than its factorization.

31440140200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51116627.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31440140200213 its reverse (31200204104413), we get a palindrome (62640344304626).

The spelling of 31440140200213 in words is "thirty-one trillion, four hundred forty billion, one hundred forty million, two hundred thousand, two hundred thirteen".