111120012120131 has 4 divisors (see below), whose sum is σ = 126994299565872. Its totient is φ = 95245724674392.

The previous prime is 111120012120119. The next prime is 111120012120157. The reversal of 111120012120131 is 131021210021111.

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 111120012120131 - 2²² = 111120007925827 is a prime.

It is a super-2 number, since 2×111120012120131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111120012120191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7937143722860 + ... + 7937143722873.

It is an arithmetic number, because the mean of its divisors is an integer number (31748574891468).

Almost surely, 2^{111120012120131} is an apocalyptic number.

111120012120131 is a deficient number, since it is larger than the sum of its proper divisors (15874287445741).

111120012120131 is an equidigital number, since it uses as much as digits as its factorization.

111120012120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15874287445740.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 111120012120131 its reverse (131021210021111), we get a palindrome (242141222141242).

The spelling of 111120012120131 in words is "one hundred eleven trillion, one hundred twenty billion, twelve million, one hundred twenty thousand, one hundred thirty-one".