131200121430 has 48 divisors (see below), whose sum is σ = 389851791264. Its totient is φ = 29988599040.

The previous prime is 131200121257. The next prime is 131200121441. The reversal of 131200121430 is 34121002131.

131200121430 is a `hidden beast` number, since 1 + 31 + 200 + 1 + 2 + 1 + 430 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104126451 + ... + 104127710.

It is an arithmetic number, because the mean of its divisors is an integer number (8121912318).

Almost surely, 2^131200121430 is an apocalyptic number.

131200121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131200121430 is an abundant number, since it is smaller than the sum of its proper divisors (258651669834).

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

131200121430 is a wasteful number, since it uses less digits than its factorization.

131200121430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208254181 (or 208254178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131200121430 its reverse (34121002131), we get a palindrome (165321123561).

The spelling of 131200121430 in words is "one hundred thirty-one billion, two hundred million, one hundred twenty-one thousand, four hundred thirty".