10101010309 has 8 divisors (see below), whose sum is σ = 11517894360. Its totient is φ = 8775538176.

The previous prime is 10101010307. The next prime is 10101010351. The reversal of 10101010309 is 90301010101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3037112100 + 7063898209 = 55110^2 + 84047^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10101010309 - 2¹ = 10101010307 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101010292 and 10101010301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101010301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22852744 + ... + 22853185.

It is an arithmetic number, because the mean of its divisors is an integer number (1439736795).

Almost surely, 2^10101010309 is an apocalyptic number.

It is an amenable number.

10101010309 is a deficient number, since it is larger than the sum of its proper divisors (1416884051).

10101010309 is a wasteful number, since it uses less digits than its factorization.

10101010309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45705959.

The product of its (nonzero) digits is 27, while the sum is 16.

The spelling of 10101010309 in words is "ten billion, one hundred one million, ten thousand, three hundred nine".