215442331143 has 16 divisors (see below), whose sum is σ = 309550596096. Its totient is φ = 132495251040.

The previous prime is 215442331103. The next prime is 215442331177. The reversal of 215442331143 is 341133244512.

It is not a de Polignac number, because 215442331143 - 2¹⁸ = 215442068999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215442331103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1701543 + ... + 1823768.

It is an arithmetic number, because the mean of its divisors is an integer number (19346912256).

Almost surely, 2^215442331143 is an apocalyptic number.

215442331143 is a deficient number, since it is larger than the sum of its proper divisors (94108264953).

215442331143 is a wasteful number, since it uses less digits than its factorization.

215442331143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526894.

The product of its digits is 34560, while the sum is 33.

Adding to 215442331143 its reverse (341133244512), we get a palindrome (556575575655).

The spelling of 215442331143 in words is "two hundred fifteen billion, four hundred forty-two million, three hundred thirty-one thousand, one hundred forty-three".