515420031002043 has 16 divisors (see below), whose sum is σ = 696643359649280. Its totient is φ = 338905063139904.

The previous prime is 515420031002017. The next prime is 515420031002161. The reversal of 515420031002043 is 340200130024515.

It is not a de Polignac number, because 515420031002043 - 2¹⁰ = 515420031001019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 515420031002043.

It is not an unprimeable number, because it can be changed into a prime (515420031006043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56676930 + ... + 65139192.

It is an arithmetic number, because the mean of its divisors is an integer number (43540209978080).

Almost surely, 2^{515420031002043} is an apocalyptic number.

515420031002043 is a deficient number, since it is larger than the sum of its proper divisors (181223328647237).

515420031002043 is a wasteful number, since it uses less digits than its factorization.

515420031002043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740458.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 515420031002043 its reverse (340200130024515), we get a palindrome (855620161026558).

The spelling of 515420031002043 in words is "five hundred fifteen trillion, four hundred twenty billion, thirty-one million, two thousand, forty-three".