505125123051011 has 8 divisors (see below), whose sum is σ = 508813556195520. Its totient is φ = 501436710029248.

The previous prime is 505125123050971. The next prime is 505125123051023. The reversal of 505125123051011 is 110150321521505.

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-505125123051011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505125123051041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47340245 + ... + 57020601.

It is an arithmetic number, because the mean of its divisors is an integer number (63601694524440).

Almost surely, 2^{505125123051011} is an apocalyptic number.

505125123051011 is a deficient number, since it is larger than the sum of its proper divisors (3688433144509).

505125123051011 is a wasteful number, since it uses less digits than its factorization.

505125123051011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061373.

The product of its (nonzero) digits is 7500, while the sum is 32.

Adding to 505125123051011 its reverse (110150321521505), we get a palindrome (615275444572516).

The spelling of 505125123051011 in words is "five hundred five trillion, one hundred twenty-five billion, one hundred twenty-three million, fifty-one thousand, eleven".