1223003415506 has 4 divisors (see below), whose sum is σ = 1834505123262. Its totient is φ = 611501707752.

The previous prime is 1223003415493. The next prime is 1223003415553. The reversal of 1223003415506 is 6055143003221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1040083824025 + 182919591481 = 1019845^2 + 427691^2 .

It is an unprimeable number.

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, 305750853875 + ... + 305750853878.

Almost surely, 2^{1223003415506} is an apocalyptic number.

1223003415506 is a deficient number, since it is larger than the sum of its proper divisors (611501707756).

1223003415506 is an equidigital number, since it uses as much as digits as its factorization.

1223003415506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611501707755.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 1223003415506 its reverse (6055143003221), we get a palindrome (7278146418727).

The spelling of 1223003415506 in words is "one trillion, two hundred twenty-three billion, three million, four hundred fifteen thousand, five hundred six".