23220111223123 has 2 divisors, whose sum is σ = 23220111223124. Its totient is φ = 23220111223122.

The previous prime is 23220111223073. The next prime is 23220111223151. The reversal of 23220111223123 is 32132211102232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23220111223123 - 2¹³ = 23220111214931 is a prime.

It is not a weakly prime, because it can be changed into another prime (23220111283123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610055611561 + 11610055611562.

It is an arithmetic number, because the mean of its divisors is an integer number (11610055611562).

Almost surely, 2^{23220111223123} is an apocalyptic number.

23220111223123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220111223123 is an equidigital number, since it uses as much as digits as its factorization.

23220111223123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 23220111223123 its reverse (32132211102232), we get a palindrome (55352322325355).

The spelling of 23220111223123 in words is "twenty-three trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-three thousand, one hundred twenty-three".