31343130223443 has 6 divisors (see below), whose sum is σ = 45273410322764. Its totient is φ = 20895420148956.

The previous prime is 31343130223399. The next prime is 31343130223499. The reversal of 31343130223443 is 34432203134313.

31343130223443 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 3 + 1 + 302 + 2 + 344 + 3 = 666.

It is not a de Polignac number, because 31343130223443 - 2¹² = 31343130219347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31343130223398 and 31343130223407.

It is not an unprimeable number, because it can be changed into a prime (31343130223243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1741285012405 + ... + 1741285012422.

Almost surely, 2^{31343130223443} is an apocalyptic number.

31343130223443 is a deficient number, since it is larger than the sum of its proper divisors (13930280099321).

31343130223443 is a wasteful number, since it uses less digits than its factorization.

31343130223443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3482570024833 (or 3482570024830 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 36.

Adding to 31343130223443 its reverse (34432203134313), we get a palindrome (65775333357756).

The spelling of 31343130223443 in words is "thirty-one trillion, three hundred forty-three billion, one hundred thirty million, two hundred twenty-three thousand, four hundred forty-three".