120131311111 has 8 divisors (see below), whose sum is σ = 137423815200. Its totient is φ = 102871529088.

The previous prime is 120131311061. The next prime is 120131311129. The reversal of 120131311111 is 111113131021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120131311111 - 2¹³ = 120131302919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120131311151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8172646 + ... + 8187331.

It is an arithmetic number, because the mean of its divisors is an integer number (17177976900).

Almost surely, 2^120131311111 is an apocalyptic number.

120131311111 is a deficient number, since it is larger than the sum of its proper divisors (17292504089).

120131311111 is a wasteful number, since it uses less digits than its factorization.

120131311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16361033.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 120131311111 its reverse (111113131021), we get a palindrome (231244442132).

The spelling of 120131311111 in words is "one hundred twenty billion, one hundred thirty-one million, three hundred eleven thousand, one hundred eleven".