1111111111010 has 8 divisors (see below), whose sum is σ = 1999999999836. Its totient is φ = 444444444400.

The previous prime is 1111111110971. The next prime is 1111111111049. The reversal of 1111111111010 is 101111111111.

It is an interprime number because it is at equal distance from previous prime (1111111110971) and next prime (1111111111049).

It can be written as a sum of positive squares in 2 ways, for example, as 905574914689 + 205536196321 = 951617^2 + 453361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1111111110982 and 1111111111000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55555555541 + ... + 55555555560.

Almost surely, 2^{1111111111010} is an apocalyptic number.

1111111111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111111111010 is a deficient number, since it is larger than the sum of its proper divisors (888888888826).

1111111111010 is a wasteful number, since it uses less digits than its factorization.

1111111111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111111111108.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 1111111111010 its reverse (101111111111), we get a palindrome (1212222222121).

The spelling of 1111111111010 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, ten".