3131231011343 has 8 divisors (see below), whose sum is σ = 3161797411968. Its totient is φ = 3100667805144.

The previous prime is 3131231011339. The next prime is 3131231011361. The reversal of 3131231011343 is 3431101321313.

It is a happy number.

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 3131231011343 - 2² = 3131231011339 is a prime.

It is a super-2 number, since 2×3131231011343² (a number of 26 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 (3131231011943) 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, 1195580 + ... + 2773422.

It is an arithmetic number, because the mean of its divisors is an integer number (395224676496).

Almost surely, 2^{3131231011343} is an apocalyptic number.

3131231011343 is a deficient number, since it is larger than the sum of its proper divisors (30566400625).

3131231011343 is a wasteful number, since it uses less digits than its factorization.

3131231011343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597213.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 3131231011343 its reverse (3431101321313), we get a palindrome (6562332332656).

The spelling of 3131231011343 in words is "three trillion, one hundred thirty-one billion, two hundred thirty-one million, eleven thousand, three hundred forty-three".