131303231300 has 36 divisors (see below), whose sum is σ = 284962227396. Its totient is φ = 52514985600.

The previous prime is 131303231291. The next prime is 131303231303. The reversal of 131303231300 is 3132303131.

It can be written as a sum of positive squares in 6 ways, for example, as 1420837636 + 129882393664 = 37694^2 + 360392^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (131303231303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807674 + ... + 956526.

Almost surely, 2^131303231300 is an apocalyptic number.

131303231300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131303231300 is an abundant number, since it is smaller than the sum of its proper divisors (153658996096).

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

131303231300 is a wasteful number, since it uses less digits than its factorization.

131303231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157688 (or 157681 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 131303231300 its reverse (3132303131), we get a palindrome (134435534431).

The spelling of 131303231300 in words is "one hundred thirty-one billion, three hundred three million, two hundred thirty-one thousand, three hundred".