10111001001 has 8 divisors (see below), whose sum is σ = 13537274784.
Its totient is φ = 6712697280.
The previous prime is 10111000979. The next prime is 10111001009. The reversal of 10111001001 is 10010011101.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 10111001001 - 217 = 10110869929 is a prime.
It is not an unprimeable number, because it can be changed into a prime (10111001009) 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, 6991671 + ... + 6993116.
It is an arithmetic number, because the mean of its divisors is an integer number (1692159348).
Almost surely, 210111001001 is an apocalyptic number.
It is an amenable number.
10111001001 is a deficient number, since it is larger than the sum of its proper divisors (3426273783).
10111001001 is a wasteful number, since it uses less digits than its factorization.
10111001001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13985031.
The product of its (nonzero) digits is 1, while the sum is 6.
Adding to 10111001001 its reverse (10010011101), we get a palindrome (20121012102).
It can be divided in two parts, 1011100 and 1001, that added together give a palindrome (1012101).
The spelling of 10111001001 in words is "ten billion, one hundred eleven million, one thousand, one".