31122233010109 has 2 divisors, whose sum is σ = 31122233010110. Its totient is φ = 31122233010108.

The previous prime is 31122233010101. The next prime is 31122233010133. The reversal of 31122233010109 is 90101033222113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19251472522500 + 11870760487609 = 4387650^2 + 3445397^2 .

It is a cyclic number.

It is not a de Polignac number, because 31122233010109 - 2³ = 31122233010101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31122233010101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15561116505054 + 15561116505055.

It is an arithmetic number, because the mean of its divisors is an integer number (15561116505055).

Almost surely, 2^{31122233010109} is an apocalyptic number.

It is an amenable number.

31122233010109 is a deficient number, since it is larger than the sum of its proper divisors (1).

31122233010109 is an equidigital number, since it uses as much as digits as its factorization.

31122233010109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 31122233010109 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred thirty-three million, ten thousand, one hundred nine".