1111111111315 has 16 divisors (see below), whose sum is σ = 1355916518208. Its totient is φ = 873911241216.

The previous prime is 1111111111307. The next prime is 1111111111333. The reversal of 1111111111315 is 5131111111111.

It is a cyclic number.

It is not a de Polignac number, because 1111111111315 - 2³ = 1111111111307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111111111292 and 1111111111301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4748599 + ... + 4977088.

It is an arithmetic number, because the mean of its divisors is an integer number (84744782388).

Almost surely, 2^{1111111111315} is an apocalyptic number.

1111111111315 is a deficient number, since it is larger than the sum of its proper divisors (244805406893).

1111111111315 is an equidigital number, since it uses as much as digits as its factorization.

1111111111315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9726078.

The product of its digits is 15, while the sum is 19.

Adding to 1111111111315 its reverse (5131111111111), we get a palindrome (6242222222426).

The spelling of 1111111111315 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, three hundred fifteen".