1220103203357 has 2 divisors, whose sum is σ = 1220103203358. Its totient is φ = 1220103203356.

The previous prime is 1220103203243. The next prime is 1220103203377. The reversal of 1220103203357 is 7533023010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220039538916 + 63664441 = 1104554^2 + 7979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220103203357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220103203377) 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, 610051601678 + 610051601679.

It is an arithmetic number, because the mean of its divisors is an integer number (610051601679).

Almost surely, 2^{1220103203357} is an apocalyptic number.

It is an amenable number.

1220103203357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220103203357 is an equidigital number, since it uses as much as digits as its factorization.

1220103203357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

Adding to 1220103203357 its reverse (7533023010221), we get a palindrome (8753126213578).

The spelling of 1220103203357 in words is "one trillion, two hundred twenty billion, one hundred three million, two hundred three thousand, three hundred fifty-seven".