305542012042 has 8 divisors (see below), whose sum is σ = 458328370500. Its totient is φ = 152765888544.

The previous prime is 305542012033. The next prime is 305542012057. The reversal of 305542012042 is 240210245503.

It can be written as a sum of positive squares in 2 ways, for example, as 212918567761 + 92623444281 = 461431^2 + 304341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×305542012042² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305542012042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2483667 + ... + 2603782.

Almost surely, 2^305542012042 is an apocalyptic number.

305542012042 is a deficient number, since it is larger than the sum of its proper divisors (152786358458).

305542012042 is a wasteful number, since it uses less digits than its factorization.

305542012042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117480.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 305542012042 its reverse (240210245503), we get a palindrome (545752257545).

The spelling of 305542012042 in words is "three hundred five billion, five hundred forty-two million, twelve thousand, forty-two".