1311111110122 has 32 divisors (see below), whose sum is σ = 2186571697920. Its totient is φ = 584544717120.

The previous prime is 1311111110093. The next prime is 1311111110147. The reversal of 1311111110122 is 2210111111131.

It is a junction number, because it is equal to n+sod(n) for n = 1311111110096 and 1311111110105.

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, 3882783 + ... + 4206925.

It is an arithmetic number, because the mean of its divisors is an integer number (68330365560).

Almost surely, 2^{1311111110122} is an apocalyptic number.

1311111110122 is a deficient number, since it is larger than the sum of its proper divisors (875460587798).

1311111110122 is a wasteful number, since it uses less digits than its factorization.

1311111110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327678.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1311111110122 its reverse (2210111111131), we get a palindrome (3521222221253).

The spelling of 1311111110122 in words is "one trillion, three hundred eleven billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-two".