511053123 has 32 divisors (see below), whose sum is σ = 814205952. Its totient is φ = 278784000.

The previous prime is 511053097. The next prime is 511053187. The reversal of 511053123 is 321350115.

It is not a de Polignac number, because 511053123 - 2⁹ = 511052611 is a prime.

It is a super-2 number, since 2×511053123² = 522350589056106258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 511053123.

It is not an unprimeable number, because it can be changed into a prime (511058123) 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, 424923 + ... + 426123.

It is an arithmetic number, because the mean of its divisors is an integer number (25443936).

Almost surely, 2^511053123 is an apocalyptic number.

511053123 is a deficient number, since it is larger than the sum of its proper divisors (303152829).

511053123 is a wasteful number, since it uses less digits than its factorization.

511053123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 511053123 is about 22606.4840919591. The cubic root of 511053123 is about 799.5065305683.

The spelling of 511053123 in words is "five hundred eleven million, fifty-three thousand, one hundred twenty-three".