511040042403 has 32 divisors (see below), whose sum is σ = 797216981760. Its totient is φ = 287883872640.

The previous prime is 511040042351. The next prime is 511040042413. The reversal of 511040042403 is 304240040115.

It is not a de Polignac number, because 511040042403 - 2⁶ = 511040042339 is a prime.

It is a super-2 number, since 2×511040042403² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511040042413) 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 31 ways as a sum of consecutive naturals, for example, 7655976 + ... + 7722437.

It is an arithmetic number, because the mean of its divisors is an integer number (24913030680).

Almost surely, 2^511040042403 is an apocalyptic number.

511040042403 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

511040042403 is a deficient number, since it is larger than the sum of its proper divisors (286176939357).

511040042403 is a wasteful number, since it uses less digits than its factorization.

511040042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15378499.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 511040042403 its reverse (304240040115), we get a palindrome (815280082518).

The spelling of 511040042403 in words is "five hundred eleven billion, forty million, forty-two thousand, four hundred three".