103213009 has 2 divisors, whose sum is σ = 103213010. Its totient is φ = 103213008.

The previous prime is 103212979. The next prime is 103213039. The reversal of 103213009 is 900312301.

It is a balanced prime because it is at equal distance from previous prime (103212979) and next prime (103213039).

It can be written as a sum of positive squares in only one way, i.e., 103083409 + 129600 = 10153^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 103213009 - 2⁷ = 103212881 is a prime.

It is not a weakly prime, because it can be changed into another prime (103213039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51606504 + 51606505.

It is an arithmetic number, because the mean of its divisors is an integer number (51606505).

Almost surely, 2^103213009 is an apocalyptic number.

It is an amenable number.

103213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

103213009 is an equidigital number, since it uses as much as digits as its factorization.

103213009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 103213009 is about 10159.3803452770. The cubic root of 103213009 is about 469.0777281714.

It can be divided in two parts, 1032 and 13009, that added together give a palindrome (14041).

The spelling of 103213009 in words is "one hundred three million, two hundred thirteen thousand, nine".