11420131031111 has 12 divisors (see below), whose sum is σ = 12554583518400. Its totient is φ = 10380384474240.

The previous prime is 11420131031063. The next prime is 11420131031137. The reversal of 11420131031111 is 11113013102411.

It is not a de Polignac number, because 11420131031111 - 2²⁶ = 11420063922247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420131039111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6245591 + ... + 7864328.

It is an arithmetic number, because the mean of its divisors is an integer number (1046215293200).

Almost surely, 2^{11420131031111} is an apocalyptic number.

11420131031111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11420131031111 is a deficient number, since it is larger than the sum of its proper divisors (1134452487289).

11420131031111 is a wasteful number, since it uses less digits than its factorization.

11420131031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116630 (or 14116619 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11420131031111 its reverse (11113013102411), we get a palindrome (22533144133522).

The spelling of 11420131031111 in words is "eleven trillion, four hundred twenty billion, one hundred thirty-one million, thirty-one thousand, one hundred eleven".