1201324541 has 4 divisors (see below), whose sum is σ = 1201483584. Its totient is φ = 1201165500.

The previous prime is 1201324519. The next prime is 1201324543. The reversal of 1201324541 is 1454231021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201324541 - 2¹⁸ = 1201062397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201324543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67595 + ... + 83496.

It is an arithmetic number, because the mean of its divisors is an integer number (300370896).

Almost surely, 2^1201324541 is an apocalyptic number.

It is an amenable number.

1201324541 is a deficient number, since it is larger than the sum of its proper divisors (159043).

1201324541 is an equidigital number, since it uses as much as digits as its factorization.

1201324541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159042.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1201324541 is about 34660.1289812949. The cubic root of 1201324541 is about 1063.0494073186.

Adding to 1201324541 its reverse (1454231021), we get a palindrome (2655555562).

The spelling of 1201324541 in words is "one billion, two hundred one million, three hundred twenty-four thousand, five hundred forty-one".