1303220212061 has 2 divisors, whose sum is σ = 1303220212062. Its totient is φ = 1303220212060.

The previous prime is 1303220212057. The next prime is 1303220212159. The reversal of 1303220212061 is 1602120223031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1060294446436 + 242925765625 = 1029706^2 + 492875^2 .

It is an emirp because it is prime and its reverse (1602120223031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303220212061 - 2² = 1303220212057 is a prime.

It is a super-2 number, since 2×1303220212061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303220212051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651610106030 + 651610106031.

It is an arithmetic number, because the mean of its divisors is an integer number (651610106031).

Almost surely, 2^{1303220212061} is an apocalyptic number.

It is an amenable number.

1303220212061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303220212061 is an equidigital number, since it uses as much as digits as its factorization.

1303220212061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1303220212061 its reverse (1602120223031), we get a palindrome (2905340435092).

The spelling of 1303220212061 in words is "one trillion, three hundred three billion, two hundred twenty million, two hundred twelve thousand, sixty-one".