31224234421109 has 2 divisors, whose sum is σ = 31224234421110. Its totient is φ = 31224234421108.

The previous prime is 31224234421087. The next prime is 31224234421129. The reversal of 31224234421109 is 90112443242213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24378136006084 + 6846098415025 = 4937422^2 + 2616505^2 .

It is a cyclic number.

It is not a de Polignac number, because 31224234421109 - 2²⁴ = 31224217643893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31224234421129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15612117210554 + 15612117210555.

It is an arithmetic number, because the mean of its divisors is an integer number (15612117210555).

Almost surely, 2^{31224234421109} is an apocalyptic number.

It is an amenable number.

31224234421109 is a deficient number, since it is larger than the sum of its proper divisors (1).

31224234421109 is an equidigital number, since it uses as much as digits as its factorization.

31224234421109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 31224234421109 in words is "thirty-one trillion, two hundred twenty-four billion, two hundred thirty-four million, four hundred twenty-one thousand, one hundred nine".