31231223030332 has 12 divisors (see below), whose sum is σ = 58858843403416. Its totient is φ = 14414410629360.

The previous prime is 31231223030291. The next prime is 31231223030333. The reversal of 31231223030332 is 23303032213213.

It is a self number, because there is not a number n which added to its sum of digits gives 31231223030332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231223030333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300300221394 + ... + 300300221497.

Almost surely, 2^{31231223030332} is an apocalyptic number.

It is an amenable number.

31231223030332 is a deficient number, since it is larger than the sum of its proper divisors (27627620373084).

31231223030332 is a wasteful number, since it uses less digits than its factorization.

31231223030332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600600442908 (or 600600442906 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31231223030332 its reverse (23303032213213), we get a palindrome (54534255243545).

The spelling of 31231223030332 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred twenty-three million, thirty thousand, three hundred thirty-two".