10101009090 has 32 divisors (see below), whose sum is σ = 24348300480. Its totient is φ = 2681838144.

The previous prime is 10101009073. The next prime is 10101009101. The reversal of 10101009090 is 9090010101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728284 + ... + 742023.

It is an arithmetic number, because the mean of its divisors is an integer number (760884390).

Almost surely, 2^10101009090 is an apocalyptic number.

10101009090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10101009090 is an abundant number, since it is smaller than the sum of its proper divisors (14247291390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10101009090 is a wasteful number, since it uses less digits than its factorization.

10101009090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470546.

The product of its (nonzero) digits is 81, while the sum is 21.

Adding to 10101009090 its reverse (9090010101), we get a palindrome (19191019191).

The spelling of 10101009090 in words is "ten billion, one hundred one million, nine thousand, ninety".