61203354601 has 2 divisors, whose sum is σ = 61203354602. Its totient is φ = 61203354600.

The previous prime is 61203354599. The next prime is 61203354607. The reversal of 61203354601 is 10645330216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34967130025 + 26236224576 = 186995^2 + 161976^2 .

It is a cyclic number.

It is not a de Polignac number, because 61203354601 - 2¹ = 61203354599 is a prime.

It is a super-2 number, since 2×61203354601² (a number of 22 digits) contains 22 as substring.

Together with 61203354599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61203354607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30601677300 + 30601677301.

It is an arithmetic number, because the mean of its divisors is an integer number (30601677301).

Almost surely, 2^61203354601 is an apocalyptic number.

It is an amenable number.

61203354601 is a deficient number, since it is larger than the sum of its proper divisors (1).

61203354601 is an equidigital number, since it uses as much as digits as its factorization.

61203354601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 61203354601 its reverse (10645330216), we get a palindrome (71848684817).

The spelling of 61203354601 in words is "sixty-one billion, two hundred three million, three hundred fifty-four thousand, six hundred one".