1220103061 has 2 divisors, whose sum is σ = 1220103062. Its totient is φ = 1220103060.

The previous prime is 1220103043. The next prime is 1220103119. The reversal of 1220103061 is 1603010221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1212780625 + 7322436 = 34825^2 + 2706^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220103061 - 2²¹ = 1218005909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220103161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610051530 + 610051531.

It is an arithmetic number, because the mean of its divisors is an integer number (610051531).

Almost surely, 2^1220103061 is an apocalyptic number.

It is an amenable number.

1220103061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220103061 is an equidigital number, since it uses as much as digits as its factorization.

1220103061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1220103061 is about 34929.9736759134. The cubic root of 1220103061 is about 1068.5598177559.

Adding to 1220103061 its reverse (1603010221), we get a palindrome (2823113282).

The spelling of 1220103061 in words is "one billion, two hundred twenty million, one hundred three thousand, sixty-one".