131210121300 has 72 divisors (see below), whose sum is σ = 379690281600. Its totient is φ = 34984235520.

The previous prime is 131210121253. The next prime is 131210121313. The reversal of 131210121300 is 3121012131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 131210121300.

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, 2299516 + ... + 2355884.

Almost surely, 2^131210121300 is an apocalyptic number.

131210121300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131210121300 is an abundant number, since it is smaller than the sum of its proper divisors (248480160300).

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

131210121300 is a wasteful number, since it uses less digits than its factorization.

131210121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64145 (or 64138 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 131210121300 its reverse (3121012131), we get a palindrome (134331133431).

The spelling of 131210121300 in words is "one hundred thirty-one billion, two hundred ten million, one hundred twenty-one thousand, three hundred".