1203240223123 has 2 divisors, whose sum is σ = 1203240223124. Its totient is φ = 1203240223122.

The previous prime is 1203240223103. The next prime is 1203240223189. The reversal of 1203240223123 is 3213220423021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203240223123 - 2²⁹ = 1202703352211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203240223103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601620111561 + 601620111562.

It is an arithmetic number, because the mean of its divisors is an integer number (601620111562).

Almost surely, 2^{1203240223123} is an apocalyptic number.

1203240223123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203240223123 is an equidigital number, since it uses as much as digits as its factorization.

1203240223123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1203240223123 its reverse (3213220423021), we get a palindrome (4416460646144).

The spelling of 1203240223123 in words is "one trillion, two hundred three billion, two hundred forty million, two hundred twenty-three thousand, one hundred twenty-three".