1223545654223 has 2 divisors, whose sum is σ = 1223545654224. Its totient is φ = 1223545654222.

The previous prime is 1223545654217. The next prime is 1223545654271. The reversal of 1223545654223 is 3224565453221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223545654223 - 2¹⁸ = 1223545392079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223545554223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611772827111 + 611772827112.

It is an arithmetic number, because the mean of its divisors is an integer number (611772827112).

Almost surely, 2^{1223545654223} is an apocalyptic number.

1223545654223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223545654223 is an equidigital number, since it uses as much as digits as its factorization.

1223545654223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728000, while the sum is 44.

The spelling of 1223545654223 in words is "one trillion, two hundred twenty-three billion, five hundred forty-five million, six hundred fifty-four thousand, two hundred twenty-three".