1205323053 has 16 divisors (see below), whose sum is σ = 1757991936. Its totient is φ = 728501040.

The previous prime is 1205323039. The next prime is 1205323079. The reversal of 1205323053 is 3503235021.

It is a happy number.

It is not a de Polignac number, because 1205323053 - 2⁹ = 1205322541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205324053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37651 + ... + 61872.

It is an arithmetic number, because the mean of its divisors is an integer number (109874496).

Almost surely, 2^1205323053 is an apocalyptic number.

It is an amenable number.

1205323053 is a deficient number, since it is larger than the sum of its proper divisors (552668883).

1205323053 is a wasteful number, since it uses less digits than its factorization.

1205323053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99904.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 1205323053 is about 34717.7627879447. The cubic root of 1205323053 is about 1064.2275259768.

Adding to 1205323053 its reverse (3503235021), we get a palindrome (4708558074).

The spelling of 1205323053 in words is "one billion, two hundred five million, three hundred twenty-three thousand, fifty-three".