1211324407 has 2 divisors, whose sum is σ = 1211324408. Its totient is φ = 1211324406.

The previous prime is 1211324369. The next prime is 1211324431. The reversal of 1211324407 is 7044231121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211324407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211324447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605662203 + 605662204.

It is an arithmetic number, because the mean of its divisors is an integer number (605662204).

Almost surely, 2^1211324407 is an apocalyptic number.

1211324407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211324407 is an equidigital number, since it uses as much as digits as its factorization.

1211324407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1211324407 is about 34804.0860675869. The cubic root of 1211324407 is about 1065.9908804207.

Adding to 1211324407 its reverse (7044231121), we get a palindrome (8255555528).

The spelling of 1211324407 in words is "one billion, two hundred eleven million, three hundred twenty-four thousand, four hundred seven".