1111111131310 has 64 divisors (see below), whose sum is σ = 2039302453824. Its totient is φ = 435801856000.

The previous prime is 1111111131301. The next prime is 1111111131331. The reversal of 1111111131310 is 131311111111.

It is a happy number.

It is a super-2 number, since 2×1111111131310² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179295132 + ... + 179301328.

It is an arithmetic number, because the mean of its divisors is an integer number (31864100841).

Almost surely, 2^{1111111131310} is an apocalyptic number.

1111111131310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111111131310 is a deficient number, since it is larger than the sum of its proper divisors (928191322514).

1111111131310 is a wasteful number, since it uses less digits than its factorization.

1111111131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7989.

The product of its (nonzero) digits is 9, while the sum is 16.

Adding to 1111111131310 its reverse (131311111111), we get a palindrome (1242422242421).

It can be divided in two parts, 1111111 and 131310, that added together give a palindrome (1242421).

The spelling of 1111111131310 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred thirty-one thousand, three hundred ten".