131203131120 has 120 divisors (see below), whose sum is σ = 440689378896. Its totient is φ = 34982298624.

The previous prime is 131203131083. The next prime is 131203131133. The reversal of 131203131120 is 21131302131.

131203131120 is a `hidden beast` number, since 131 + 203 + 1 + 311 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131203131093 and 131203131102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8904079 + ... + 8918801.

Almost surely, 2^131203131120 is an apocalyptic number.

131203131120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131203131120 is an abundant number, since it is smaller than the sum of its proper divisors (309486247776).

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

131203131120 is a wasteful number, since it uses less digits than its factorization.

131203131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27119 (or 27110 counting only the distinct ones).

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

Adding to 131203131120 its reverse (21131302131), we get a palindrome (152334433251).

The spelling of 131203131120 in words is "one hundred thirty-one billion, two hundred three million, one hundred thirty-one thousand, one hundred twenty".