10101010090 has 32 divisors (see below), whose sum is σ = 19144664640. Its totient is φ = 3826569600.

The previous prime is 10101010079. The next prime is 10101010163. The reversal of 10101010090 is 9001010101.

It is a self number, because there is not a number n which added to its sum of digits gives 10101010090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837805 + ... + 849775.

It is an arithmetic number, because the mean of its divisors is an integer number (598270770).

Almost surely, 2^10101010090 is an apocalyptic number.

10101010090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10101010090 is a deficient number, since it is larger than the sum of its proper divisors (9043654550).

10101010090 is a wasteful number, since it uses less digits than its factorization.

10101010090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16438.

The product of its (nonzero) digits is 9, while the sum is 13.

Adding to 10101010090 its reverse (9001010101), we get a palindrome (19102020191).

The spelling of 10101010090 in words is "ten billion, one hundred one million, ten thousand, ninety".