1223070979679 has 4 divisors (see below), whose sum is σ = 1224961352784. Its totient is φ = 1221180606576.

The previous prime is 1223070979667. The next prime is 1223070979681. The reversal of 1223070979679 is 9769790703221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223070979679 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 (1223070979609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945185582 + ... + 945186875.

It is an arithmetic number, because the mean of its divisors is an integer number (306240338196).

Almost surely, 2^{1223070979679} is an apocalyptic number.

1223070979679 is a deficient number, since it is larger than the sum of its proper divisors (1890373105).

1223070979679 is an equidigital number, since it uses as much as digits as its factorization.

1223070979679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890373104.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 1223070979679 in words is "one trillion, two hundred twenty-three billion, seventy million, nine hundred seventy-nine thousand, six hundred seventy-nine".