2031012331231 has 8 divisors (see below), whose sum is σ = 2187409322000. Its totient is φ = 1874638950912.

The previous prime is 2031012331223. The next prime is 2031012331247. The reversal of 2031012331231 is 1321332101302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2031012331231 - 2³ = 2031012331223 is a prime.

It is a super-2 number, since 2×2031012331231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031012331531) 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, 5723745 + ... + 6068218.

It is an arithmetic number, because the mean of its divisors is an integer number (273426165250).

Almost surely, 2^{2031012331231} is an apocalyptic number.

2031012331231 is a deficient number, since it is larger than the sum of its proper divisors (156396990769).

2031012331231 is a wasteful number, since it uses less digits than its factorization.

2031012331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11805225.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2031012331231 its reverse (1321332101302), we get a palindrome (3352344432533).

The spelling of 2031012331231 in words is "two trillion, thirty-one billion, twelve million, three hundred thirty-one thousand, two hundred thirty-one".