125213335205442 has 16 divisors (see below), whose sum is σ = 273192731357472. Its totient is φ = 37943434910720.

The previous prime is 125213335205389. The next prime is 125213335205471. The reversal of 125213335205442 is 244502533312521.

It is a junction number, because it is equal to n+sod(n) for n = 125213335205394 and 125213335205403.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948585872703 + ... + 948585872834.

It is an arithmetic number, because the mean of its divisors is an integer number (17074545709842).

Almost surely, 2^{125213335205442} is an apocalyptic number.

125213335205442 is an abundant number, since it is smaller than the sum of its proper divisors (147979396152030).

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

125213335205442 is a wasteful number, since it uses less digits than its factorization.

125213335205442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897171745553.

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 125213335205442 its reverse (244502533312521), we get a palindrome (369715868517963).

The spelling of 125213335205442 in words is "one hundred twenty-five trillion, two hundred thirteen billion, three hundred thirty-five million, two hundred five thousand, four hundred forty-two".