1223070979680 has 144 divisors (see below), whose sum is σ = 4553159751504. Its totient is φ = 296502051840.

The previous prime is 1223070979667. The next prime is 1223070979681. The reversal of 1223070979680 is 869790703221.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223070979681) 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 23 ways as a sum of consecutive naturals, for example, 38591199 + ... + 38622878.

It is an arithmetic number, because the mean of its divisors is an integer number (31619164941).

Almost surely, 2^{1223070979680} is an apocalyptic number.

1223070979680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223070979680 is an abundant number, since it is smaller than the sum of its proper divisors (3330088771824).

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

1223070979680 is a wasteful number, since it uses less digits than its factorization.

1223070979680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77214109 (or 77214098 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 1223070979680 in words is "one trillion, two hundred twenty-three billion, seventy million, nine hundred seventy-nine thousand, six hundred eighty".