2331421109 has 2 divisors, whose sum is σ = 2331421110. Its totient is φ = 2331421108.

The previous prime is 2331421091. The next prime is 2331421129. The reversal of 2331421109 is 9011241332.

Together with previous prime (2331421091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2327773009 + 3648100 = 48247^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331421109 - 2¹² = 2331417013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331421129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165710554 + 1165710555.

It is an arithmetic number, because the mean of its divisors is an integer number (1165710555).

Almost surely, 2^2331421109 is an apocalyptic number.

It is an amenable number.

2331421109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331421109 is an equidigital number, since it uses as much as digits as its factorization.

2331421109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2331421109 is about 48284.7916946941. The cubic root of 2331421109 is about 1325.9899774173.

The spelling of 2331421109 in words is "two billion, three hundred thirty-one million, four hundred twenty-one thousand, one hundred nine".