1223323002320 has 20 divisors (see below), whose sum is σ = 2844225980580. Its totient is φ = 489329200896.

The previous prime is 1223323002281. The next prime is 1223323002367. The reversal of 1223323002320 is 232003233221.

It can be written as a sum of positive squares in 2 ways, for example, as 829330776976 + 393992225344 = 910676^2 + 627688^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7645768685 + ... + 7645768844.

It is an arithmetic number, because the mean of its divisors is an integer number (142211299029).

Almost surely, 2^{1223323002320} is an apocalyptic number.

1223323002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223323002320 is an abundant number, since it is smaller than the sum of its proper divisors (1620902978260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223323002320 is a wasteful number, since it uses less digits than its factorization.

1223323002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15291537542 (or 15291537536 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 1223323002320 its reverse (232003233221), we get a palindrome (1455326235541).

The spelling of 1223323002320 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-three million, two thousand, three hundred twenty".