1103131232111 has 4 divisors (see below), whose sum is σ = 1103152572912. Its totient is φ = 1103109891312.

The previous prime is 1103131232039. The next prime is 1103131232117. The reversal of 1103131232111 is 1112321313011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103131232111 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 (1103131232117) 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, 10592675 + ... + 10696308.

It is an arithmetic number, because the mean of its divisors is an integer number (275788143228).

Almost surely, 2^{1103131232111} is an apocalyptic number.

1103131232111 is a deficient number, since it is larger than the sum of its proper divisors (21340801).

1103131232111 is an equidigital number, since it uses as much as digits as its factorization.

1103131232111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21340800.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1103131232111 its reverse (1112321313011), we get a palindrome (2215452545122).

The spelling of 1103131232111 in words is "one trillion, one hundred three billion, one hundred thirty-one million, two hundred thirty-two thousand, one hundred eleven".