505230121124 has 6 divisors (see below), whose sum is σ = 884152711974. Its totient is φ = 252615060560.

The previous prime is 505230121117. The next prime is 505230121157. The reversal of 505230121124 is 421121032505.

It can be written as a sum of positive squares in only one way, i.e., 459141760000 + 46088361124 = 677600^2 + 214682^2 .

It is a super-2 number, since 2×505230121124² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505230121093 and 505230121102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63153765137 + ... + 63153765144.

It is an arithmetic number, because the mean of its divisors is an integer number (147358785329).

Almost surely, 2^505230121124 is an apocalyptic number.

It is an amenable number.

505230121124 is a deficient number, since it is larger than the sum of its proper divisors (378922590850).

505230121124 is a wasteful number, since it uses less digits than its factorization.

505230121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126307530285 (or 126307530283 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 505230121124 its reverse (421121032505), we get a palindrome (926351153629).

The spelling of 505230121124 in words is "five hundred five billion, two hundred thirty million, one hundred twenty-one thousand, one hundred twenty-four".