122300145503 has 2 divisors, whose sum is σ = 122300145504. Its totient is φ = 122300145502.

The previous prime is 122300145491. The next prime is 122300145521. The reversal of 122300145503 is 305541003221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122300145503 - 2¹² = 122300141407 is a prime.

It is a super-2 number, since 2×122300145503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122300145563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61150072751 + 61150072752.

It is an arithmetic number, because the mean of its divisors is an integer number (61150072752).

Almost surely, 2^122300145503 is an apocalyptic number.

122300145503 is a deficient number, since it is larger than the sum of its proper divisors (1).

122300145503 is an equidigital number, since it uses as much as digits as its factorization.

122300145503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 122300145503 its reverse (305541003221), we get a palindrome (427841148724).

The spelling of 122300145503 in words is "one hundred twenty-two billion, three hundred million, one hundred forty-five thousand, five hundred three".