1101010001001 has 16 divisors (see below), whose sum is σ = 1478985842880. Its totient is φ = 728523351360.

The previous prime is 1101010000939. The next prime is 1101010001011. The reversal of 1101010001001 is 1001000101011.

It is not a de Polignac number, because 1101010001001 - 2¹⁴ = 1101009984617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101010001011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141231 + ... + 1872011.

It is an arithmetic number, because the mean of its divisors is an integer number (92436615180).

Almost surely, 2^{1101010001001} is an apocalyptic number.

It is an amenable number.

1101010001001 is a deficient number, since it is larger than the sum of its proper divisors (377975841879).

1101010001001 is a wasteful number, since it uses less digits than its factorization.

1101010001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734536.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 1101010001001 its reverse (1001000101011), we get a palindrome (2102010102012).

The spelling of 1101010001001 in words is "one trillion, one hundred one billion, ten million, one thousand, one".