305124042061 has 2 divisors, whose sum is σ = 305124042062. Its totient is φ = 305124042060.

The previous prime is 305124042007. The next prime is 305124042079. The reversal of 305124042061 is 160240421503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154991816100 + 150132225961 = 393690^2 + 387469^2 .

It is a cyclic number.

It is not a de Polignac number, because 305124042061 - 2¹³ = 305124033869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (305124042001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152562021030 + 152562021031.

It is an arithmetic number, because the mean of its divisors is an integer number (152562021031).

Almost surely, 2^305124042061 is an apocalyptic number.

It is an amenable number.

305124042061 is a deficient number, since it is larger than the sum of its proper divisors (1).

305124042061 is an equidigital number, since it uses as much as digits as its factorization.

305124042061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 305124042061 its reverse (160240421503), we get a palindrome (465364463564).

The spelling of 305124042061 in words is "three hundred five billion, one hundred twenty-four million, forty-two thousand, sixty-one".