213443001224242 has 4 divisors (see below), whose sum is σ = 320164501836366. Its totient is φ = 106721500612120.

The previous prime is 213443001224237. The next prime is 213443001224251. The reversal of 213443001224242 is 242422100344312.

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

It can be written as a sum of positive squares in only one way, i.e., 208167155144001 + 5275846080241 = 14427999^2 + 2296921^2 .

It is a super-3 number, since 3×213443001224242³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 213443001224198 and 213443001224207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53360750306059 + ... + 53360750306062.

Almost surely, 2^{213443001224242} is an apocalyptic number.

213443001224242 is a deficient number, since it is larger than the sum of its proper divisors (106721500612124).

213443001224242 is a wasteful number, since it uses less digits than its factorization.

213443001224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106721500612123.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 213443001224242 its reverse (242422100344312), we get a palindrome (455865101568554).

The spelling of 213443001224242 in words is "two hundred thirteen trillion, four hundred forty-three billion, one million, two hundred twenty-four thousand, two hundred forty-two".