1103331311111 has 4 divisors (see below), whose sum is σ = 1103380499424. Its totient is φ = 1103282122800.

The previous prime is 1103331311101. The next prime is 1103331311129. The reversal of 1103331311111 is 1111131333011.

It is a happy number.

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 1103331311111 - 2¹⁴ = 1103331294727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103331311101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24560495 + ... + 24605376.

It is an arithmetic number, because the mean of its divisors is an integer number (275845124856).

Almost surely, 2^{1103331311111} is an apocalyptic number.

1103331311111 is a deficient number, since it is larger than the sum of its proper divisors (49188313).

1103331311111 is an equidigital number, since it uses as much as digits as its factorization.

1103331311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49188312.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 1103331311111 its reverse (1111131333011), we get a palindrome (2214462644122).

The spelling of 1103331311111 in words is "one trillion, one hundred three billion, three hundred thirty-one million, three hundred eleven thousand, one hundred eleven".