303321201242 has 4 divisors (see below), whose sum is σ = 454981801866. Its totient is φ = 151660600620.

The previous prime is 303321201229. The next prime is 303321201247. The reversal of 303321201242 is 242102123303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242102123303 = 31 ⋅7809745913.

It can be written as a sum of positive squares in only one way, i.e., 261295791241 + 42025410001 = 511171^2 + 205001^2 .

It is a super-2 number, since 2×303321201242² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (303321201247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75830300309 + ... + 75830300312.

Almost surely, 2^303321201242 is an apocalyptic number.

303321201242 is a deficient number, since it is larger than the sum of its proper divisors (151660600624).

303321201242 is a wasteful number, since it uses less digits than its factorization.

303321201242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151660600623.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 303321201242 its reverse (242102123303), we get a palindrome (545423324545).

The spelling of 303321201242 in words is "three hundred three billion, three hundred twenty-one million, two hundred one thousand, two hundred forty-two".