1051000001111 has 4 divisors (see below), whose sum is σ = 1057694268792. Its totient is φ = 1044305733432.

The previous prime is 1051000001101. The next prime is 1051000001131. The reversal of 1051000001111 is 1111000001501.

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 1051000001111 - 2¹⁰ = 1051000000087 is a prime.

It is a super-2 number, since 2×1051000001111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051000001092 and 1051000001101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051000001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347133605 + ... + 3347133918.

It is an arithmetic number, because the mean of its divisors is an integer number (264423567198).

Almost surely, 2^{1051000001111} is an apocalyptic number.

1051000001111 is a deficient number, since it is larger than the sum of its proper divisors (6694267681).

1051000001111 is an equidigital number, since it uses as much as digits as its factorization.

1051000001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694267680.

The product of its (nonzero) digits is 5, while the sum is 11.

Adding to 1051000001111 its reverse (1111000001501), we get a palindrome (2162000002612).

The spelling of 1051000001111 in words is "one trillion, fifty-one billion, one thousand, one hundred eleven".