1203123133127 has 2 divisors, whose sum is σ = 1203123133128. Its totient is φ = 1203123133126.

The previous prime is 1203123133109. The next prime is 1203123133229. The reversal of 1203123133127 is 7213313213021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203123133127 - 2³² = 1198828165831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1203123133127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1203123123127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601561566563 + 601561566564.

It is an arithmetic number, because the mean of its divisors is an integer number (601561566564).

Almost surely, 2^{1203123133127} is an apocalyptic number.

1203123133127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203123133127 is an equidigital number, since it uses as much as digits as its factorization.

1203123133127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 1203123133127 its reverse (7213313213021), we get a palindrome (8416436346148).

The spelling of 1203123133127 in words is "one trillion, two hundred three billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred twenty-seven".