1223412220023 has 12 divisors (see below), whose sum is σ = 1897537321080. Its totient is φ = 699092697072.

The previous prime is 1223412219943. The next prime is 1223412220031. The reversal of 1223412220023 is 3200222143221.

It is not a de Polignac number, because 1223412220023 - 2²¹ = 1223410122871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223412219975 and 1223412220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223412220073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4161265908 + ... + 4161266201.

It is an arithmetic number, because the mean of its divisors is an integer number (158128110090).

Almost surely, 2^{1223412220023} is an apocalyptic number.

1223412220023 is a deficient number, since it is larger than the sum of its proper divisors (674125101057).

1223412220023 is an equidigital number, since it uses as much as digits as its factorization.

1223412220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322532126 (or 8322532119 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1223412220023 its reverse (3200222143221), we get a palindrome (4423634363244).

The spelling of 1223412220023 in words is "one trillion, two hundred twenty-three billion, four hundred twelve million, two hundred twenty thousand, twenty-three".