2031212123 has 2 divisors, whose sum is σ = 2031212124. Its totient is φ = 2031212122.

The previous prime is 2031212077. The next prime is 2031212129. The reversal of 2031212123 is 3212121302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2031212123 - 2¹⁰ = 2031211099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031212129) 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 as a sum of consecutive naturals, namely, 1015606061 + 1015606062.

It is an arithmetic number, because the mean of its divisors is an integer number (1015606062).

Almost surely, 2^2031212123 is an apocalyptic number.

2031212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031212123 is an equidigital number, since it uses as much as digits as its factorization.

2031212123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2031212123 is about 45068.9707337543. The cubic root of 2031212123 is about 1266.4413828414.

Adding to 2031212123 its reverse (3212121302), we get a palindrome (5243333425).

The spelling of 2031212123 in words is "two billion, thirty-one million, two hundred twelve thousand, one hundred twenty-three".