1011323201 has 24 divisors (see below), whose sum is σ = 1195707240. Its totient is φ = 852768000.

The previous prime is 1011323197. The next prime is 1011323213. The reversal of 1011323201 is 1023231101.

It can be written as a sum of positive squares in 4 ways, for example, as 10233601 + 1001089600 = 3199^2 + 31640^2 .

It is not a de Polignac number, because 1011323201 - 2² = 1011323197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011323801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 895205 + ... + 896333.

It is an arithmetic number, because the mean of its divisors is an integer number (49821135).

Almost surely, 2^1011323201 is an apocalyptic number.

It is an amenable number.

1011323201 is a deficient number, since it is larger than the sum of its proper divisors (184384039).

1011323201 is a wasteful number, since it uses less digits than its factorization.

1011323201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1011323201 is about 31801.3081649167. The cubic root of 1011323201 is about 1003.7602431820.

Adding to 1011323201 its reverse (1023231101), we get a palindrome (2034554302).

The spelling of 1011323201 in words is "one billion, eleven million, three hundred twenty-three thousand, two hundred one".