305506122141 has 16 divisors (see below), whose sum is σ = 444383311680. Its totient is φ = 185150737920.

The previous prime is 305506122139. The next prime is 305506122167. The reversal of 305506122141 is 141221605503.

It is not a de Polignac number, because 305506122141 - 2¹ = 305506122139 is a prime.

It is a super-2 number, since 2×305506122141² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 305506122099 and 305506122108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305506122101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713325 + ... + 1883213.

It is an arithmetic number, because the mean of its divisors is an integer number (27773956980).

Almost surely, 2^305506122141 is an apocalyptic number.

It is an amenable number.

305506122141 is a deficient number, since it is larger than the sum of its proper divisors (138877189539).

305506122141 is a wasteful number, since it uses less digits than its factorization.

305506122141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224396.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 305506122141 its reverse (141221605503), we get a palindrome (446727727644).

The spelling of 305506122141 in words is "three hundred five billion, five hundred six million, one hundred twenty-two thousand, one hundred forty-one".