125505020431143 has 12 divisors (see below), whose sum is σ = 181285370880328. Its totient is φ = 83669856066000.

The previous prime is 125505020431111. The next prime is 125505020431199. The reversal of 125505020431143 is 341134020505521.

125505020431143 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 0 + 502 + 0 + 4 + 3 + 1 + 143 = 666.

It is not a de Polignac number, because 125505020431143 - 2⁵ = 125505020431111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125505020431098 and 125505020431107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125505020431243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7978180 + ... + 17738697.

Almost surely, 2^{125505020431143} is an apocalyptic number.

125505020431143 is a deficient number, since it is larger than the sum of its proper divisors (55780350449185).

125505020431143 is a wasteful number, since it uses less digits than its factorization.

125505020431143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26259134 (or 26259131 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 125505020431143 its reverse (341134020505521), we get a palindrome (466639040936664).

The spelling of 125505020431143 in words is "one hundred twenty-five trillion, five hundred five billion, twenty million, four hundred thirty-one thousand, one hundred forty-three".