120111032131 has 4 divisors (see below), whose sum is σ = 122904311992. Its totient is φ = 117317752272.

The previous prime is 120111032123. The next prime is 120111032183. The reversal of 120111032131 is 131230111021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131230111021 = 43 ⋅3051863047.

It is a cyclic number.

It is not a de Polignac number, because 120111032131 - 2³ = 120111032123 is a prime.

It is a super-2 number, since 2×120111032131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111030131) 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 3 ways as a sum of consecutive naturals, for example, 1396639866 + ... + 1396639951.

It is an arithmetic number, because the mean of its divisors is an integer number (30726077998).

Almost surely, 2^120111032131 is an apocalyptic number.

120111032131 is a deficient number, since it is larger than the sum of its proper divisors (2793279861).

120111032131 is an equidigital number, since it uses as much as digits as its factorization.

120111032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793279860.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 120111032131 its reverse (131230111021), we get a palindrome (251341143152).

The spelling of 120111032131 in words is "one hundred twenty billion, one hundred eleven million, thirty-two thousand, one hundred thirty-one".