505123124251043 has 8 divisors (see below), whose sum is σ = 505517449700640. Its totient is φ = 504728802607680.

The previous prime is 505123124251037. The next prime is 505123124251087. The reversal of 505123124251043 is 340152421321505.

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

It is a cyclic number.

It is not a de Polignac number, because 505123124251043 - 2⁴ = 505123124251027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505123124250988 and 505123124251006.

It is not an unprimeable number, because it can be changed into a prime (505123124251093) 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, 302232458 + ... + 303899168.

It is an arithmetic number, because the mean of its divisors is an integer number (63189681212580).

Almost surely, 2^{505123124251043} is an apocalyptic number.

505123124251043 is a deficient number, since it is larger than the sum of its proper divisors (394325449597).

505123124251043 is a wasteful number, since it uses less digits than its factorization.

505123124251043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903117.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 505123124251043 its reverse (340152421321505), we get a palindrome (845275545572548).

The spelling of 505123124251043 in words is "five hundred five trillion, one hundred twenty-three billion, one hundred twenty-four million, two hundred fifty-one thousand, forty-three".