1009900011 has 8 divisors (see below), whose sum is σ = 1425741264. Its totient is φ = 633662720.

The previous prime is 1009900009. The next prime is 1009900013. The reversal of 1009900011 is 1100099001.

It is an interprime number because it is at equal distance from previous prime (1009900009) and next prime (1009900013).

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

It is a cyclic number.

It is not a de Polignac number, because 1009900011 - 2¹ = 1009900009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1009900013) 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, 9900930 + ... + 9901031.

It is an arithmetic number, because the mean of its divisors is an integer number (178217658).

Almost surely, 2^1009900011 is an apocalyptic number.

1009900011 is a deficient number, since it is larger than the sum of its proper divisors (415841253).

1009900011 is a wasteful number, since it uses less digits than its factorization.

1009900011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19801981.

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

The square root of 1009900011 is about 31778.9240063285. The cubic root of 1009900011 is about 1003.2891731452.

Adding to 1009900011 its reverse (1100099001), we get a palindrome (2109999012).

The spelling of 1009900011 in words is "one billion, nine million, nine hundred thousand, eleven".