61020220301 has 2 divisors, whose sum is σ = 61020220302. Its totient is φ = 61020220300.

The previous prime is 61020220277. The next prime is 61020220321. The reversal of 61020220301 is 10302202016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52189859401 + 8830360900 = 228451^2 + 93970^2 .

It is a cyclic number.

It is not a de Polignac number, because 61020220301 - 2²² = 61016025997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61020220301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61020220321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30510110150 + 30510110151.

It is an arithmetic number, because the mean of its divisors is an integer number (30510110151).

Almost surely, 2^61020220301 is an apocalyptic number.

It is an amenable number.

61020220301 is a deficient number, since it is larger than the sum of its proper divisors (1).

61020220301 is an equidigital number, since it uses as much as digits as its factorization.

61020220301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 61020220301 its reverse (10302202016), we get a palindrome (71322422317).

The spelling of 61020220301 in words is "sixty-one billion, twenty million, two hundred twenty thousand, three hundred one".