303420340403542 has 4 divisors (see below), whose sum is σ = 455130510605316. Its totient is φ = 151710170201770.

The previous prime is 303420340403519. The next prime is 303420340403549. The reversal of 303420340403542 is 245304043024303.

It is a happy number.

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

It is a super-2 number, since 2×303420340403542² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303420340403549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75855085100884 + ... + 75855085100887.

It is an arithmetic number, because the mean of its divisors is an integer number (113782627651329).

Almost surely, 2^{303420340403542} is an apocalyptic number.

303420340403542 is a deficient number, since it is larger than the sum of its proper divisors (151710170201774).

303420340403542 is a wasteful number, since it uses less digits than its factorization.

303420340403542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151710170201773.

The product of its (nonzero) digits is 414720, while the sum is 37.

Adding to 303420340403542 its reverse (245304043024303), we get a palindrome (548724383427845).

The spelling of 303420340403542 in words is "three hundred three trillion, four hundred twenty billion, three hundred forty million, four hundred three thousand, five hundred forty-two".