1103212111011 has 16 divisors (see below), whose sum is σ = 1534928693760. Its totient is φ = 703486171520.

The previous prime is 1103212111007. The next prime is 1103212111013. The reversal of 1103212111011 is 1101112123011.

It is a cyclic number.

It is not a de Polignac number, because 1103212111011 - 2² = 1103212111007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103212111013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6897595 + ... + 7055723.

It is an arithmetic number, because the mean of its divisors is an integer number (95933043360).

Almost surely, 2^{1103212111011} is an apocalyptic number.

1103212111011 is a deficient number, since it is larger than the sum of its proper divisors (431716582749).

1103212111011 is a wasteful number, since it uses less digits than its factorization.

1103212111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259266.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1103212111011 its reverse (1101112123011), we get a palindrome (2204324234022).

The spelling of 1103212111011 in words is "one trillion, one hundred three billion, two hundred twelve million, one hundred eleven thousand, eleven".