131121154121325 has 192 divisors, whose sum is σ = 229114444879872. Its totient is φ = 66075322060800.

The previous prime is 131121154121281. The next prime is 131121154121329. The reversal of 131121154121325 is 523121451121131.

It is a happy number.

It is not a de Polignac number, because 131121154121325 - 2⁷ = 131121154121197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121154121329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 34030923099 + ... + 34030926951.

It is an arithmetic number, because the mean of its divisors is an integer number (1193304400416).

Almost surely, 2^{131121154121325} is an apocalyptic number.

131121154121325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131121154121325 is a deficient number, since it is larger than the sum of its proper divisors (97993290758547).

131121154121325 is a wasteful number, since it uses less digits than its factorization.

131121154121325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5224 (or 5219 counting only the distinct ones).

The product of its digits is 7200, while the sum is 33.

The spelling of 131121154121325 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, one hundred fifty-four million, one hundred twenty-one thousand, three hundred twenty-five".