511054414243 has 4 divisors (see below), whose sum is σ = 533274171408. Its totient is φ = 488834657080.

The previous prime is 511054414133. The next prime is 511054414249. The reversal of 511054414243 is 342414450115.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511054414243 - 2⁹ = 511054413731 is a prime.

It is a super-3 number, since 3×511054414243³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 511054414199 and 511054414208.

It is not an unprimeable number, because it can be changed into a prime (511054414249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11109878548 + ... + 11109878593.

It is an arithmetic number, because the mean of its divisors is an integer number (133318542852).

Almost surely, 2^511054414243 is an apocalyptic number.

511054414243 is a deficient number, since it is larger than the sum of its proper divisors (22219757165).

511054414243 is a wasteful number, since it uses less digits than its factorization.

511054414243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22219757164.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 511054414243 its reverse (342414450115), we get a palindrome (853468864358).

The spelling of 511054414243 in words is "five hundred eleven billion, fifty-four million, four hundred fourteen thousand, two hundred forty-three".