61303040201 has 4 divisors (see below), whose sum is σ = 66018658692. Its totient is φ = 56587421712.

The previous prime is 61303040189. The next prime is 61303040243. The reversal of 61303040201 is 10204030316.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28467788176 + 32835252025 = 168724^2 + 181205^2 .

It is a cyclic number.

It is not a de Polignac number, because 61303040201 - 2³⁰ = 60229298377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61303040251) 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 3 ways as a sum of consecutive naturals, for example, 2357809226 + ... + 2357809251.

It is an arithmetic number, because the mean of its divisors is an integer number (16504664673).

Almost surely, 2^61303040201 is an apocalyptic number.

It is an amenable number.

61303040201 is a deficient number, since it is larger than the sum of its proper divisors (4715618491).

61303040201 is a wasteful number, since it uses less digits than its factorization.

61303040201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4715618490.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 61303040201 its reverse (10204030316), we get a palindrome (71507070517).

The spelling of 61303040201 in words is "sixty-one billion, three hundred three million, forty thousand, two hundred one".