131011012120 has 32 divisors (see below), whose sum is σ = 296926430400. Its totient is φ = 52021888768.

The previous prime is 131011012109. The next prime is 131011012123. The reversal of 131011012120 is 21210110131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131011012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011012123) 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 7 ways as a sum of consecutive naturals, for example, 11948080 + ... + 11959039.

It is an arithmetic number, because the mean of its divisors is an integer number (9278950950).

Almost surely, 2^131011012120 is an apocalyptic number.

131011012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131011012120 is an abundant number, since it is smaller than the sum of its proper divisors (165915418280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131011012120 is a wasteful number, since it uses less digits than its factorization.

131011012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23907267 (or 23907263 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 131011012120 its reverse (21210110131), we get a palindrome (152221122251).

The spelling of 131011012120 in words is "one hundred thirty-one billion, eleven million, twelve thousand, one hundred twenty".