511005341023 has 8 divisors (see below), whose sum is σ = 523479620160. Its totient is φ = 498531573120.

The previous prime is 511005340997. The next prime is 511005341027. The reversal of 511005341023 is 320143500115.

It is a happy number.

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-511005341023 is a prime.

It is a super-2 number, since 2×511005341023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511005341027) 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, 2594986 + ... + 2784952.

It is an arithmetic number, because the mean of its divisors is an integer number (65434952520).

Almost surely, 2^511005341023 is an apocalyptic number.

511005341023 is a deficient number, since it is larger than the sum of its proper divisors (12474279137).

511005341023 is a wasteful number, since it uses less digits than its factorization.

511005341023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255617.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 511005341023 its reverse (320143500115), we get a palindrome (831148841138).

The spelling of 511005341023 in words is "five hundred eleven billion, five million, three hundred forty-one thousand, twenty-three".