31543212523263 has 24 divisors (see below), whose sum is σ = 48937422193920. Its totient is φ = 18019809143280.

The previous prime is 31543212523259. The next prime is 31543212523307. The reversal of 31543212523263 is 36232521234513.

It is not a de Polignac number, because 31543212523263 - 2² = 31543212523259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31543212123263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28525383 + ... + 29610536.

It is an arithmetic number, because the mean of its divisors is an integer number (2039059258080).

Almost surely, 2^{31543212523263} is an apocalyptic number.

31543212523263 is a deficient number, since it is larger than the sum of its proper divisors (17394209670657).

31543212523263 is a wasteful number, since it uses less digits than its factorization.

31543212523263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58139627 (or 58139620 counting only the distinct ones).

The product of its digits is 777600, while the sum is 42.

Adding to 31543212523263 its reverse (36232521234513), we get a palindrome (67775733757776).

The spelling of 31543212523263 in words is "thirty-one trillion, five hundred forty-three billion, two hundred twelve million, five hundred twenty-three thousand, two hundred sixty-three".