123220202313 has 16 divisors (see below), whose sum is σ = 176951448576. Its totient is φ = 75819298560.

The previous prime is 123220202279. The next prime is 123220202327. The reversal of 123220202313 is 313202022321.

It is a happy number.

It is not a de Polignac number, because 123220202313 - 2¹⁶ = 123220136777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123220202313.

It is not an unprimeable number, because it can be changed into a prime (123220202393) 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 in 15 ways as a sum of consecutive naturals, for example, 183448 + ... + 529238.

It is an arithmetic number, because the mean of its divisors is an integer number (11059465536).

Almost surely, 2^123220202313 is an apocalyptic number.

123220202313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

123220202313 is a deficient number, since it is larger than the sum of its proper divisors (53731246263).

123220202313 is a wasteful number, since it uses less digits than its factorization.

123220202313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354944.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123220202313 its reverse (313202022321), we get a palindrome (436422224634).

The spelling of 123220202313 in words is "one hundred twenty-three billion, two hundred twenty million, two hundred two thousand, three hundred thirteen".