1000010011111 has 4 divisors (see below), whose sum is σ = 1000024748424.
Its totient is φ = 999995273800.
The previous prime is 1000010011081. The next prime is 1000010011123. The reversal of 1000010011111 is 1111100100001.
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 1000010011111 - 215 = 1000009978343 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1000010011094 and 1000010011103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1000010011181) 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, 7266400 + ... + 7402741.
It is an arithmetic number, because the mean of its divisors is an integer number (250006187106).
Almost surely, 21000010011111 is an apocalyptic number.
1000010011111 is a deficient number, since it is larger than the sum of its proper divisors (14737313).
1000010011111 is an equidigital number, since it uses as much as digits as its factorization.
1000010011111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14737312.
The product of its (nonzero) digits is 1, while the sum is 7.
Adding to 1000010011111 its reverse (1111100100001), we get a palindrome (2111110111112).
The spelling of 1000010011111 in words is "one trillion, ten million, eleven thousand, one hundred eleven".