10011111012011 has 4 divisors (see below), whose sum is σ = 10015358409792. Its totient is φ = 10006863614232.

The previous prime is 10011111011983. The next prime is 10011111012017. The reversal of 10011111012011 is 11021011111001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10011111012011 - 2³⁴ = 9993931142827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011111011983 and 10011111012001.

It is not an unprimeable number, because it can be changed into a prime (10011111012017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2123695355 + ... + 2123700068.

It is an arithmetic number, because the mean of its divisors is an integer number (2503839602448).

Almost surely, 2^{10011111012011} is an apocalyptic number.

10011111012011 is a deficient number, since it is larger than the sum of its proper divisors (4247397781).

10011111012011 is an equidigital number, since it uses as much as digits as its factorization.

10011111012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247397780.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 10011111012011 its reverse (11021011111001), we get a palindrome (21032122123012).

The spelling of 10011111012011 in words is "ten trillion, eleven billion, one hundred eleven million, twelve thousand, eleven".