212143142041 has 4 divisors (see below), whose sum is σ = 212535274084. Its totient is φ = 211751010000.

The previous prime is 212143142023. The next prime is 212143142059. The reversal of 212143142041 is 140241341212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (212143142023) and next prime (212143142059).

It can be written as a sum of positive squares in 2 ways, for example, as 94565475225 + 117577666816 = 307515^2 + 342896^2 .

It is a cyclic number.

It is not a de Polignac number, because 212143142041 - 2³¹ = 209995658393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212143141997 and 212143142015.

It is not an unprimeable number, because it can be changed into a prime (212143142441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196065210 + ... + 196066291.

It is an arithmetic number, because the mean of its divisors is an integer number (53133818521).

Almost surely, 2^212143142041 is an apocalyptic number.

It is an amenable number.

212143142041 is a deficient number, since it is larger than the sum of its proper divisors (392132043).

212143142041 is an equidigital number, since it uses as much as digits as its factorization.

212143142041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392132042.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 212143142041 its reverse (140241341212), we get a palindrome (352384483253).

The spelling of 212143142041 in words is "two hundred twelve billion, one hundred forty-three million, one hundred forty-two thousand, forty-one".