1220230310137 has 2 divisors, whose sum is σ = 1220230310138. Its totient is φ = 1220230310136.

The previous prime is 1220230310113. The next prime is 1220230310171. The reversal of 1220230310137 is 7310130320221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810821007936 + 409409302201 = 900456^2 + 639851^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220230310137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220230310107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610115155068 + 610115155069.

It is an arithmetic number, because the mean of its divisors is an integer number (610115155069).

Almost surely, 2^{1220230310137} is an apocalyptic number.

It is an amenable number.

1220230310137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220230310137 is an equidigital number, since it uses as much as digits as its factorization.

1220230310137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 1220230310137 its reverse (7310130320221), we get a palindrome (8530360630358).

The spelling of 1220230310137 in words is "one trillion, two hundred twenty billion, two hundred thirty million, three hundred ten thousand, one hundred thirty-seven".