2031322431 has 16 divisors (see below), whose sum is σ = 2742980864. Its totient is φ = 1337019264.

The previous prime is 2031322421. The next prime is 2031322453. The reversal of 2031322431 is 1342231302.

It is not a de Polignac number, because 2031322431 - 2¹³ = 2031314239 is a prime.

It is a super-2 number, since 2×2031322431² = 8252541637367499522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2031322398 and 2031322407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031322421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94380 + ... + 113886.

It is an arithmetic number, because the mean of its divisors is an integer number (171436304).

Almost surely, 2^2031322431 is an apocalyptic number.

2031322431 is a deficient number, since it is larger than the sum of its proper divisors (711658433).

2031322431 is a wasteful number, since it uses less digits than its factorization.

2031322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19950.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2031322431 is about 45070.1944859349. The cubic root of 2031322431 is about 1266.4643077550.

Adding to 2031322431 its reverse (1342231302), we get a palindrome (3373553733).

The spelling of 2031322431 in words is "two billion, thirty-one million, three hundred twenty-two thousand, four hundred thirty-one".