320055434242 has 4 divisors (see below), whose sum is σ = 480083151366. Its totient is φ = 160027717120.

The previous prime is 320055434197. The next prime is 320055434273. The reversal of 320055434242 is 242434550023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242434550023 = 233 ⋅1040491631.

It can be written as a sum of positive squares in only one way, i.e., 182244463801 + 137810970441 = 426901^2 + 371229^2 .

It is a super-2 number, since 2×320055434242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320055434198 and 320055434207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80013858559 + ... + 80013858562.

Almost surely, 2^320055434242 is an apocalyptic number.

320055434242 is a deficient number, since it is larger than the sum of its proper divisors (160027717124).

320055434242 is a wasteful number, since it uses less digits than its factorization.

320055434242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160027717123.

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 320055434242 its reverse (242434550023), we get a palindrome (562489984265).

The spelling of 320055434242 in words is "three hundred twenty billion, fifty-five million, four hundred thirty-four thousand, two hundred forty-two".