31223432541532 has 48 divisors (see below), whose sum is σ = 71085759478272. Its totient is φ = 11636061814080.

The previous prime is 31223432541527. The next prime is 31223432541541. The reversal of 31223432541532 is 23514523432213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2203792503 + ... + 2203806670.

It is an arithmetic number, because the mean of its divisors is an integer number (1480953322464).

Almost surely, 2^{31223432541532} is an apocalyptic number.

It is an amenable number.

31223432541532 is an abundant number, since it is smaller than the sum of its proper divisors (39862326936740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31223432541532 is a wasteful number, since it uses less digits than its factorization.

31223432541532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407599218 (or 4407599216 counting only the distinct ones).

The product of its digits is 518400, while the sum is 40.

Adding to 31223432541532 its reverse (23514523432213), we get a palindrome (54737955973745).

The spelling of 31223432541532 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-two million, five hundred forty-one thousand, five hundred thirty-two".