11403142111 has 4 divisors (see below), whose sum is σ = 11432915712. Its totient is φ = 11373368512.

The previous prime is 11403142099. The next prime is 11403142123. The reversal of 11403142111 is 11124130411.

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

It is an interprime number because it is at equal distance from previous prime (11403142099) and next prime (11403142123).

It is a cyclic number.

It is not a de Polignac number, because 11403142111 - 2⁹ = 11403141599 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 (11403142141) 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, 14886226 + ... + 14886991.

It is an arithmetic number, because the mean of its divisors is an integer number (2858228928).

Almost surely, 2^11403142111 is an apocalyptic number.

11403142111 is a deficient number, since it is larger than the sum of its proper divisors (29773601).

11403142111 is an equidigital number, since it uses as much as digits as its factorization.

11403142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29773600.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11403142111 its reverse (11124130411), we get a palindrome (22527272522).

The spelling of 11403142111 in words is "eleven billion, four hundred three million, one hundred forty-two thousand, one hundred eleven".