131100120 has 160 divisors (see below), whose sum is σ = 451368720. Its totient is φ = 34110720.

The previous prime is 131100113. The next prime is 131100127. The reversal of 131100120 is 21001131.

It is an interprime number because it is at equal distance from previous prime (131100113) and next prime (131100127).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 138850 + ... + 139790.

Almost surely, 2^131100120 is an apocalyptic number.

131100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225684360).

131100120 is an abundant number, since it is smaller than the sum of its proper divisors (320268600).

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

131100120 is a wasteful number, since it uses less digits than its factorization.

131100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 131100120 is about 11449.8960693973. The cubic root of 131100120 is about 508.0046602999.

Adding to 131100120 its reverse (21001131), we get a palindrome (152101251).

The spelling of 131100120 in words is "one hundred thirty-one million, one hundred thousand, one hundred twenty".