131121120300 has 72 divisors (see below), whose sum is σ = 380333063376. Its totient is φ = 34877525760.

The previous prime is 131121120281. The next prime is 131121120307. The reversal of 131121120300 is 3021121131.

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 131121120300.

It is not an unprimeable number, because it can be changed into a prime (131121120307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 431367 + ... + 669566.

It is an arithmetic number, because the mean of its divisors is an integer number (5282403658).

Almost surely, 2^131121120300 is an apocalyptic number.

131121120300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131121120300 is an abundant number, since it is smaller than the sum of its proper divisors (249211943076).

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

131121120300 is a wasteful number, since it uses less digits than its factorization.

131121120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101347 (or 1101340 counting only the distinct ones).

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

Adding to 131121120300 its reverse (3021121131), we get a palindrome (134142241431).

The spelling of 131121120300 in words is "one hundred thirty-one billion, one hundred twenty-one million, one hundred twenty thousand, three hundred".