11111010001 has 16 divisors (see below), whose sum is σ = 13828752000. Its totient is φ = 8692345728.

The previous prime is 11111009969. The next prime is 11111010037. The reversal of 11111010001 is 10001011111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11111010001 - 2⁵ = 11111009969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (11111010061) 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, 677851 + ... + 694048.

It is an arithmetic number, because the mean of its divisors is an integer number (864297000).

Almost surely, 2^11111010001 is an apocalyptic number.

It is an amenable number.

11111010001 is a deficient number, since it is larger than the sum of its proper divisors (2717741999).

11111010001 is a wasteful number, since it uses less digits than its factorization.

11111010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372008.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 11111010001 its reverse (10001011111), we get a palindrome (21112021112).

The spelling of 11111010001 in words is "eleven billion, one hundred eleven million, ten thousand, one".