511230326243 has 32 divisors (see below), whose sum is σ = 640469846016. Its totient is φ = 397305618048.

The previous prime is 511230326237. The next prime is 511230326249. The reversal of 511230326243 is 342623032115.

It is an interprime number because it is at equal distance from previous prime (511230326237) and next prime (511230326249).

It is a cyclic number.

It is not a de Polignac number, because 511230326243 - 2¹⁰ = 511230325219 is a prime.

It is a super-2 number, since 2×511230326243² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511230326249) 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, 1111046 + ... + 1502292.

It is an arithmetic number, because the mean of its divisors is an integer number (20014682688).

Almost surely, 2^511230326243 is an apocalyptic number.

511230326243 is a deficient number, since it is larger than the sum of its proper divisors (129239519773).

511230326243 is a wasteful number, since it uses less digits than its factorization.

511230326243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391523.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 511230326243 its reverse (342623032115), we get a palindrome (853853358358).

The spelling of 511230326243 in words is "five hundred eleven billion, two hundred thirty million, three hundred twenty-six thousand, two hundred forty-three".