111022123231109 has 2 divisors, whose sum is σ = 111022123231110. Its totient is φ = 111022123231108.

The previous prime is 111022123231021. The next prime is 111022123231121. The reversal of 111022123231109 is 901132321220111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57913956854884 + 53108166376225 = 7610122^2 + 7287535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111022123231109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111022123231009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55511061615554 + 55511061615555.

It is an arithmetic number, because the mean of its divisors is an integer number (55511061615555).

Almost surely, 2^{111022123231109} is an apocalyptic number.

It is an amenable number.

111022123231109 is a deficient number, since it is larger than the sum of its proper divisors (1).

111022123231109 is an equidigital number, since it uses as much as digits as its factorization.

111022123231109 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 29.

The spelling of 111022123231109 in words is "one hundred eleven trillion, twenty-two billion, one hundred twenty-three million, two hundred thirty-one thousand, one hundred nine".