1101103131211 has 4 divisors (see below), whose sum is σ = 1101105743400. Its totient is φ = 1101100519024.

The previous prime is 1101103131187. The next prime is 1101103131241. The reversal of 1101103131211 is 1121313011011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101103131211 - 2²⁷ = 1100968913483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101103131241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513466 + ... + 1570303.

It is an arithmetic number, because the mean of its divisors is an integer number (275276435850).

Almost surely, 2^{1101103131211} is an apocalyptic number.

1101103131211 is a deficient number, since it is larger than the sum of its proper divisors (2612189).

1101103131211 is an equidigital number, since it uses as much as digits as its factorization.

1101103131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612188.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1101103131211 its reverse (1121313011011), we get a palindrome (2222416142222).

The spelling of 1101103131211 in words is "one trillion, one hundred one billion, one hundred three million, one hundred thirty-one thousand, two hundred eleven".