31231230321133 has 8 divisors (see below), whose sum is σ = 31480840678400. Its totient is φ = 30981677700960.

The previous prime is 31231230321113. The next prime is 31231230321241. The reversal of 31231230321133 is 33112303213213.

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 31231230321133 - 2⁵ = 31231230321101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31231230321113) 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, 13347783 + ... + 15512116.

It is an arithmetic number, because the mean of its divisors is an integer number (3935105084800).

Almost surely, 2^{31231230321133} is an apocalyptic number.

It is an amenable number.

31231230321133 is a deficient number, since it is larger than the sum of its proper divisors (249610357267).

31231230321133 is a wasteful number, since it uses less digits than its factorization.

31231230321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28868547.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 31231230321133 its reverse (33112303213213), we get a palindrome (64343533534346).

The spelling of 31231230321133 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred thirty million, three hundred twenty-one thousand, one hundred thirty-three".