123220354663 has 32 divisors (see below), whose sum is σ = 149392512000. Its totient is φ = 99408503040.

The previous prime is 123220354661. The next prime is 123220354667. The reversal of 123220354663 is 366453022321.

It is not a de Polignac number, because 123220354663 - 2¹ = 123220354661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220354661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1234728 + ... + 1330786.

It is an arithmetic number, because the mean of its divisors is an integer number (4668516000).

Almost surely, 2^123220354663 is an apocalyptic number.

123220354663 is a deficient number, since it is larger than the sum of its proper divisors (26172157337).

123220354663 is an equidigital number, since it uses as much as digits as its factorization.

123220354663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96255.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 123220354663 its reverse (366453022321), we get a palindrome (489673376984).

The spelling of 123220354663 in words is "one hundred twenty-three billion, two hundred twenty million, three hundred fifty-four thousand, six hundred sixty-three".