2031322101231 has 4 divisors (see below), whose sum is σ = 2708429468312. Its totient is φ = 1354214734152.

The previous prime is 2031322101191. The next prime is 2031322101233. The reversal of 2031322101231 is 1321012231302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2031322101231 - 2⁶ = 2031322101167 is a prime.

It is a super-2 number, since 2×2031322101231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031322101198 and 2031322101207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031322101233) 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, 338553683536 + ... + 338553683541.

It is an arithmetic number, because the mean of its divisors is an integer number (677107367078).

Almost surely, 2^{2031322101231} is an apocalyptic number.

2031322101231 is a deficient number, since it is larger than the sum of its proper divisors (677107367081).

2031322101231 is an equidigital number, since it uses as much as digits as its factorization.

2031322101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677107367080.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2031322101231 its reverse (1321012231302), we get a palindrome (3352334332533).

The spelling of 2031322101231 in words is "two trillion, thirty-one billion, three hundred twenty-two million, one hundred one thousand, two hundred thirty-one".