31240041213343 has 8 divisors (see below), whose sum is σ = 31542104252736. Its totient is φ = 30938427340800.

The previous prime is 31240041213317. The next prime is 31240041213349. The reversal of 31240041213343 is 34331214004213.

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-31240041213343 is a prime.

It is a super-2 number, since 2×31240041213343² (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 (31240041213349) 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, 112151938 + ... + 112430143.

It is an arithmetic number, because the mean of its divisors is an integer number (3942763031592).

Almost surely, 2^{31240041213343} is an apocalyptic number.

31240041213343 is a deficient number, since it is larger than the sum of its proper divisors (302063039393).

31240041213343 is a wasteful number, since it uses less digits than its factorization.

31240041213343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224583425.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 31240041213343 its reverse (34331214004213), we get a palindrome (65571255217556).

The spelling of 31240041213343 in words is "thirty-one trillion, two hundred forty billion, forty-one million, two hundred thirteen thousand, three hundred forty-three".