505010001101 has 32 divisors (see below), whose sum is σ = 564239520000. Its totient is φ = 449786760192.

The previous prime is 505010001077. The next prime is 505010001109. The reversal of 505010001101 is 101100010505.

It is a cyclic number.

It is not a de Polignac number, because 505010001101 - 2¹⁸ = 505009738957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505010001109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6534755 + ... + 6611583.

It is an arithmetic number, because the mean of its divisors is an integer number (17632485000).

Almost surely, 2^505010001101 is an apocalyptic number.

It is an amenable number.

505010001101 is a deficient number, since it is larger than the sum of its proper divisors (59229518899).

505010001101 is a wasteful number, since it uses less digits than its factorization.

505010001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77141.

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 505010001101 its reverse (101100010505), we get a palindrome (606110011606).

The spelling of 505010001101 in words is "five hundred five billion, ten million, one thousand, one hundred one".