120203311131 has 6 divisors (see below), whose sum is σ = 173627004980. Its totient is φ = 80135540748.

The previous prime is 120203311099. The next prime is 120203311133. The reversal of 120203311131 is 131113302021.

120203311131 is a `hidden beast` number, since 1 + 20 + 203 + 311 + 131 = 666.

It is not a de Polignac number, because 120203311131 - 2⁵ = 120203311099 is a prime.

It is a super-2 number, since 2×120203311131² (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 (120203311133) 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 5 ways as a sum of consecutive naturals, for example, 6677961721 + ... + 6677961738.

Almost surely, 2^120203311131 is an apocalyptic number.

120203311131 is a deficient number, since it is larger than the sum of its proper divisors (53423693849).

120203311131 is a wasteful number, since it uses less digits than its factorization.

120203311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13355923465 (or 13355923462 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 120203311131 its reverse (131113302021), we get a palindrome (251316613152).

The spelling of 120203311131 in words is "one hundred twenty billion, two hundred three million, three hundred eleven thousand, one hundred thirty-one".