2112310322031 has 72 divisors (see below), whose sum is σ = 3626194577040. Its totient is φ = 1084071195648.

The previous prime is 2112310322029. The next prime is 2112310322039. The reversal of 2112310322031 is 1302230132112.

It is not a de Polignac number, because 2112310322031 - 2¹ = 2112310322029 is a prime.

It is a super-2 number, since 2×2112310322031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2112310321989 and 2112310322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112310322039) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2212455 + ... + 3019863.

It is an arithmetic number, because the mean of its divisors is an integer number (50363813570).

Almost surely, 2^{2112310322031} is an apocalyptic number.

2112310322031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2112310322031 is a deficient number, since it is larger than the sum of its proper divisors (1513884255009).

2112310322031 is a wasteful number, since it uses less digits than its factorization.

2112310322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807513 (or 807469 counting only the distinct ones).

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

Adding to 2112310322031 its reverse (1302230132112), we get a palindrome (3414540454143).

The spelling of 2112310322031 in words is "two trillion, one hundred twelve billion, three hundred ten million, three hundred twenty-two thousand, thirty-one".