131354520121530 has 96 divisors (see below), whose sum is σ = 365589744062400. Its totient is φ = 32621854035456.

The previous prime is 131354520121481. The next prime is 131354520121537. The reversal of 131354520121530 is 35121025453131.

It is a happy number.

131354520121530 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 5 + 4 + 520 + 121 + 5 + 3 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (131354520121537) 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, 650877999 + ... + 651079778.

It is an arithmetic number, because the mean of its divisors is an integer number (3808226500650).

Almost surely, 2^{131354520121530} is an apocalyptic number.

131354520121530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131354520121530 is an abundant number, since it is smaller than the sum of its proper divisors (234235223940870).

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

131354520121530 is a wasteful number, since it uses less digits than its factorization.

131354520121530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301957868 (or 1301957865 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 131354520121530 its reverse (35121025453131), we get a palindrome (166475545574661).

The spelling of 131354520121530 in words is "one hundred thirty-one trillion, three hundred fifty-four billion, five hundred twenty million, one hundred twenty-one thousand, five hundred thirty".