1101111101012 has 96 divisors (see below), whose sum is σ = 2215876569984. Its totient is φ = 474259968000.

The previous prime is 1101111100949. The next prime is 1101111101021. The reversal of 1101111101012 is 2101011111011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101111100984 and 1101111101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168028328 + ... + 168034880.

It is an arithmetic number, because the mean of its divisors is an integer number (23082047604).

Almost surely, 2^{1101111101012} is an apocalyptic number.

It is an amenable number.

1101111101012 is an abundant number, since it is smaller than the sum of its proper divisors (1114765468972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101111101012 is a wasteful number, since it uses less digits than its factorization.

1101111101012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169 (or 8167 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1101111101012 its reverse (2101011111011), we get a palindrome (3202122212023).

Subtracting 1101111101012 from its reverse (2101011111011), we obtain a palindrome (999900009999).

The spelling of 1101111101012 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred one thousand, twelve".