215503430143 has 32 divisors (see below), whose sum is σ = 242119342080. Its totient is φ = 190952640000.

The previous prime is 215503430123. The next prime is 215503430167. The reversal of 215503430143 is 341034305512.

215503430143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 215503430143 - 2¹³ = 215503421951 is a prime.

It is a super-3 number, since 3×215503430143³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215503430123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2542243 + ... + 2625643.

It is an arithmetic number, because the mean of its divisors is an integer number (7566229440).

Almost surely, 2^215503430143 is an apocalyptic number.

215503430143 is a deficient number, since it is larger than the sum of its proper divisors (26615911937).

215503430143 is a wasteful number, since it uses less digits than its factorization.

215503430143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83599.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 215503430143 its reverse (341034305512), we get a palindrome (556537735655).

The spelling of 215503430143 in words is "two hundred fifteen billion, five hundred three million, four hundred thirty thousand, one hundred forty-three".