10000001111111 has 4 divisors (see below), whose sum is σ = 10909092121224. Its totient is φ = 9090910101000.

The previous prime is 10000001111077. The next prime is 10000001111117. The reversal of 10000001111111 is 11111110000001.

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 10000001111111 - 2⁴² = 5601954600007 is a prime.

10000001111111 is a modest number, since divided by 1111111 gives 1000000 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000001111117) 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, 454545505040 + ... + 454545505061.

It is an arithmetic number, because the mean of its divisors is an integer number (2727273030306).

Almost surely, 2^{10000001111111} is an apocalyptic number.

10000001111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10000001111111 is a deficient number, since it is larger than the sum of its proper divisors (909091010113).

10000001111111 is an equidigital number, since it uses as much as digits as its factorization.

10000001111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909091010112.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 10000001111111 its reverse (11111110000001), we get a palindrome (21111111111112).

It can be divided in two parts, 10000001 and 111111, that multiplied together give a palindrome (1111110111111).

The spelling of 10000001111111 in words is "ten trillion, one million, one hundred eleven thousand, one hundred eleven".