1223147503 has 2 divisors, whose sum is σ = 1223147504. Its totient is φ = 1223147502.

The previous prime is 1223147491. The next prime is 1223147531. The reversal of 1223147503 is 3057413221.

It is an a-pointer prime, because the next prime (1223147531) can be obtained adding 1223147503 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (3057413221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223147503 - 2¹³ = 1223139311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224147503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611573751 + 611573752.

It is an arithmetic number, because the mean of its divisors is an integer number (611573752).

Almost surely, 2^1223147503 is an apocalyptic number.

1223147503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223147503 is an equidigital number, since it uses as much as digits as its factorization.

1223147503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1223147503 is about 34973.5257444828. The cubic root of 1223147503 is about 1069.4478482927.

The spelling of 1223147503 in words is "one billion, two hundred twenty-three million, one hundred forty-seven thousand, five hundred three".