2312031140831 has 2 divisors, whose sum is σ = 2312031140832. Its totient is φ = 2312031140830.

The previous prime is 2312031140813. The next prime is 2312031140873. The reversal of 2312031140831 is 1380411302132.

Together with previous prime (2312031140813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2312031140831 - 2¹⁰ = 2312031139807 is a prime.

It is a super-2 number, since 2×2312031140831² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2312031140794 and 2312031140803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2312031142831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156015570415 + 1156015570416.

It is an arithmetic number, because the mean of its divisors is an integer number (1156015570416).

Almost surely, 2^{2312031140831} is an apocalyptic number.

2312031140831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312031140831 is an equidigital number, since it uses as much as digits as its factorization.

2312031140831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 2312031140831 its reverse (1380411302132), we get a palindrome (3692442442963).

The spelling of 2312031140831 in words is "two trillion, three hundred twelve billion, thirty-one million, one hundred forty thousand, eight hundred thirty-one".