1203211147 has 2 divisors, whose sum is σ = 1203211148. Its totient is φ = 1203211146.

The previous prime is 1203211129. The next prime is 1203211151. The reversal of 1203211147 is 7411123021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1203211147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203211127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601605573 + 601605574.

It is an arithmetic number, because the mean of its divisors is an integer number (601605574).

Almost surely, 2^1203211147 is an apocalyptic number.

1203211147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203211147 is an equidigital number, since it uses as much as digits as its factorization.

1203211147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1203211147 is about 34687.3341005042. The cubic root of 1203211147 is about 1063.6056007451.

Adding to 1203211147 its reverse (7411123021), we get a palindrome (8614334168).

The spelling of 1203211147 in words is "one billion, two hundred three million, two hundred eleven thousand, one hundred forty-seven".