2124211231 has 2 divisors, whose sum is σ = 2124211232. Its totient is φ = 2124211230.

The previous prime is 2124211213. The next prime is 2124211237. The reversal of 2124211231 is 1321124212.

Together with previous prime (2124211213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2124211231 - 2²¹ = 2122114079 is a prime.

It is a super-2 number, since 2×2124211231² = 9024546707813070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2124211199 and 2124211208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124211237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062105615 + 1062105616.

It is an arithmetic number, because the mean of its divisors is an integer number (1062105616).

Almost surely, 2^2124211231 is an apocalyptic number.

2124211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124211231 is an equidigital number, since it uses as much as digits as its factorization.

2124211231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 2124211231 is about 46089.1660913929. The cubic root of 2124211231 is about 1285.4817052742.

Adding to 2124211231 its reverse (1321124212), we get a palindrome (3445335443).

The spelling of 2124211231 in words is "two billion, one hundred twenty-four million, two hundred eleven thousand, two hundred thirty-one".