1203971 has 2 divisors, whose sum is σ = 1203972. Its totient is φ = 1203970.

The previous prime is 1203959. The next prime is 1204003. The reversal of 1203971 is 1793021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203971 - 2¹⁴ = 1187587 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1203901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601985 + 601986.

It is an arithmetic number, because the mean of its divisors is an integer number (601986).

2^1203971 is an apocalyptic number.

1203971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203971 is an equidigital number, since it uses as much as digits as its factorization.

1203971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1203971 is about 1097.2561232456. The cubic root of 1203971 is about 106.3829450023.

Adding to 1203971 its reverse (1793021), we get a palindrome (2996992).

The spelling of 1203971 in words is "one million, two hundred three thousand, nine hundred seventy-one".