243322204143131 has 2 divisors, whose sum is σ = 243322204143132. Its totient is φ = 243322204143130.

The previous prime is 243322204143119. The next prime is 243322204143169. The reversal of 243322204143131 is 131341402223342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243322204143131 - 2³⁴ = 243305024273947 is a prime.

It is a super-2 number, since 2×243322204143131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243322204143091 and 243322204143100.

It is not a weakly prime, because it can be changed into another prime (243322204103131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121661102071565 + 121661102071566.

It is an arithmetic number, because the mean of its divisors is an integer number (121661102071566).

Almost surely, 2^{243322204143131} is an apocalyptic number.

243322204143131 is a deficient number, since it is larger than the sum of its proper divisors (1).

243322204143131 is an equidigital number, since it uses as much as digits as its factorization.

243322204143131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 243322204143131 its reverse (131341402223342), we get a palindrome (374663606366473).

The spelling of 243322204143131 in words is "two hundred forty-three trillion, three hundred twenty-two billion, two hundred four million, one hundred forty-three thousand, one hundred thirty-one".