131203131012 has 144 divisors (see below), whose sum is σ = 371185214400. Its totient is φ = 38832721920.

The previous prime is 131203130983. The next prime is 131203131019. The reversal of 131203131012 is 210131302131.

131203131012 is a `hidden beast` number, since 1 + 312 + 0 + 31 + 310 + 12 = 666.

It is a super-2 number, since 2×131203131012² (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (131203131019) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2778939 + ... + 2825757.

It is an arithmetic number, because the mean of its divisors is an integer number (2577675100).

Almost surely, 2^131203131012 is an apocalyptic number.

131203131012 is a gapful number since it is divisible by the number (12) 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 131203131012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185592607200).

131203131012 is an abundant number, since it is smaller than the sum of its proper divisors (239982083388).

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

131203131012 is a wasteful number, since it uses less digits than its factorization.

131203131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47106 (or 47101 counting only the distinct ones).

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

Adding to 131203131012 its reverse (210131302131), we get a palindrome (341334433143).

The spelling of 131203131012 in words is "one hundred thirty-one billion, two hundred three million, one hundred thirty-one thousand, twelve".