1223202320240 has 40 divisors (see below), whose sum is σ = 2848171293168. Its totient is φ = 488553891840.

The previous prime is 1223202320213. The next prime is 1223202320257. The reversal of 1223202320240 is 420232023221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 11305766 + ... + 11413445.

Almost surely, 2^{1223202320240} is an apocalyptic number.

1223202320240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223202320240 is an abundant number, since it is smaller than the sum of its proper divisors (1624968972928).

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

1223202320240 is a wasteful number, since it uses less digits than its factorization.

1223202320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22719897 (or 22719891 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 1223202320240 its reverse (420232023221), we get a palindrome (1643434343461).

The spelling of 1223202320240 in words is "one trillion, two hundred twenty-three billion, two hundred two million, three hundred twenty thousand, two hundred forty".