1220342421323 has 8 divisors (see below), whose sum is σ = 1229832269328. Its totient is φ = 1210877001504.

The previous prime is 1220342421313. The next prime is 1220342421349. The reversal of 1220342421323 is 3231242430221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220342421323 - 2²⁴ = 1220325644107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220342421313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6006740 + ... + 6206577.

It is an arithmetic number, because the mean of its divisors is an integer number (153729033666).

Almost surely, 2^{1220342421323} is an apocalyptic number.

1220342421323 is a deficient number, since it is larger than the sum of its proper divisors (9489848005).

1220342421323 is a wasteful number, since it uses less digits than its factorization.

1220342421323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12214093.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1220342421323 its reverse (3231242430221), we get a palindrome (4451584851544).

The spelling of 1220342421323 in words is "one trillion, two hundred twenty billion, three hundred forty-two million, four hundred twenty-one thousand, three hundred twenty-three".