131101120120 has 64 divisors (see below), whose sum is σ = 310906836000. Its totient is φ = 49676809728.

The previous prime is 131101120063. The next prime is 131101120187. The reversal of 131101120120 is 21021101131.

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 131101120120.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1004730 + ... + 1127689.

Almost surely, 2^131101120120 is an apocalyptic number.

131101120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131101120120 is an abundant number, since it is smaller than the sum of its proper divisors (179805715880).

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

131101120120 is a wasteful number, since it uses less digits than its factorization.

131101120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132512 (or 2132508 counting only the distinct ones).

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

Adding to 131101120120 its reverse (21021101131), we get a palindrome (152122221251).

The spelling of 131101120120 in words is "one hundred thirty-one billion, one hundred one million, one hundred twenty thousand, one hundred twenty".