1201324511 has 2 divisors, whose sum is σ = 1201324512. Its totient is φ = 1201324510.

The previous prime is 1201324489. The next prime is 1201324519. The reversal of 1201324511 is 1154231021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201324511 - 2¹⁴ = 1201308127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201324519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600662255 + 600662256.

It is an arithmetic number, because the mean of its divisors is an integer number (600662256).

Almost surely, 2^1201324511 is an apocalyptic number.

1201324511 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201324511 is an equidigital number, since it uses as much as digits as its factorization.

1201324511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1201324511 is about 34660.1285485210. The cubic root of 1201324511 is about 1063.0493984696.

Adding to 1201324511 its reverse (1154231021), we get a palindrome (2355555532).

The spelling of 1201324511 in words is "one billion, two hundred one million, three hundred twenty-four thousand, five hundred eleven".