111211123130131 has 16 divisors (see below), whose sum is σ = 119282123435040. Its totient is φ = 103362201895680.

The previous prime is 111211123130083. The next prime is 111211123130143. The reversal of 111211123130131 is 131031321112111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111211123130131 - 2¹⁵ = 111211123097363 is a prime.

It is a super-2 number, since 2×111211123130131² (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 (111211123130531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9163381 + ... + 17503993.

It is an arithmetic number, because the mean of its divisors is an integer number (7455132714690).

Almost surely, 2^{111211123130131} is an apocalyptic number.

111211123130131 is a deficient number, since it is larger than the sum of its proper divisors (8071000304909).

111211123130131 is a wasteful number, since it uses less digits than its factorization.

111211123130131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353926.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 111211123130131 its reverse (131031321112111), we get a palindrome (242242444242242).

The spelling of 111211123130131 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twenty-three million, one hundred thirty thousand, one hundred thirty-one".