125321142055 has 8 divisors (see below), whose sum is σ = 150638974992. Its totient is φ = 100087843968.

The previous prime is 125321142007. The next prime is 125321142101. The reversal of 125321142055 is 550241123521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125321142055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21130449 + ... + 21136378.

It is an arithmetic number, because the mean of its divisors is an integer number (18829871874).

Almost surely, 2^125321142055 is an apocalyptic number.

125321142055 is a deficient number, since it is larger than the sum of its proper divisors (25317832937).

125321142055 is an equidigital number, since it uses as much as digits as its factorization.

125321142055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42267425.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 125321142055 its reverse (550241123521), we get a palindrome (675562265576).

The spelling of 125321142055 in words is "one hundred twenty-five billion, three hundred twenty-one million, one hundred forty-two thousand, fifty-five".