1013122109 has 2 divisors, whose sum is σ = 1013122110. Its totient is φ = 1013122108.

The previous prime is 1013122091. The next prime is 1013122133. The reversal of 1013122109 is 9012213101.

Together with previous prime (1013122091) 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., 686597209 + 326524900 = 26203^2 + 18070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013122109 - 2⁸ = 1013121853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1013122169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506561054 + 506561055.

It is an arithmetic number, because the mean of its divisors is an integer number (506561055).

Almost surely, 2^1013122109 is an apocalyptic number.

It is an amenable number.

1013122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013122109 is an equidigital number, since it uses as much as digits as its factorization.

1013122109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1013122109 is about 31829.5791521032. The cubic root of 1013122109 is about 1004.3550424058.

The spelling of 1013122109 in words is "one billion, thirteen million, one hundred twenty-two thousand, one hundred nine".