31204344340213 has 8 divisors (see below), whose sum is σ = 34618070763360. Its totient is φ = 27886779224880.

The previous prime is 31204344340189. The next prime is 31204344340249.

31204344340213 is nontrivially palindromic in base 10.

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-31204344340213 is a prime.

It is a super-2 number, since 2×31204344340213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31204344340283) 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, 24040326270 + ... + 24040327567.

It is an arithmetic number, because the mean of its divisors is an integer number (4327258845420).

Almost surely, 2^{31204344340213} is an apocalyptic number.

It is an amenable number.

31204344340213 is a deficient number, since it is larger than the sum of its proper divisors (3413726423147).

31204344340213 is a wasteful number, since it uses less digits than its factorization.

31204344340213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48080653907.

The product of its (nonzero) digits is 82944, while the sum is 34.

It can be divided in two parts, 3120434 and 4340213, that added together give a palindrome (7460647).

The spelling of 31204344340213 in words is "thirty-one trillion, two hundred four billion, three hundred forty-four million, three hundred forty thousand, two hundred thirteen".