305531033142 has 16 divisors (see below), whose sum is σ = 611135637552. Its totient is φ = 101831415840.

The previous prime is 305531033141. The next prime is 305531033231. The reversal of 305531033142 is 241330135503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305531033141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3011409 + ... + 3111212.

It is an arithmetic number, because the mean of its divisors is an integer number (38195977347).

Almost surely, 2^305531033142 is an apocalyptic number.

305531033142 is an abundant number, since it is smaller than the sum of its proper divisors (305604604410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305531033142 is a wasteful number, since it uses less digits than its factorization.

305531033142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130943.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 305531033142 its reverse (241330135503), we get a palindrome (546861168645).

The spelling of 305531033142 in words is "three hundred five billion, five hundred thirty-one million, thirty-three thousand, one hundred forty-two".