1011443401 has 8 divisors (see below), whose sum is σ = 1015124264. Its totient is φ = 1007769600.

The previous prime is 1011443387. The next prime is 1011443413. The reversal of 1011443401 is 1043441101.

1011443401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104530176 + 906913225 = 10224^2 + 30115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 5-Lehmer number, since φ(1011443401) divides (1011443401-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011443401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011443201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560701 + ... + 562501.

It is an arithmetic number, because the mean of its divisors is an integer number (126890533).

Almost surely, 2^1011443401 is an apocalyptic number.

It is an amenable number.

1011443401 is a deficient number, since it is larger than the sum of its proper divisors (3680863).

1011443401 is a wasteful number, since it uses less digits than its factorization.

1011443401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1011443401 is about 31803.1979681289. The cubic root of 1011443401 is about 1003.8000086435.

Adding to 1011443401 its reverse (1043441101), we get a palindrome (2054884502).

The spelling of 1011443401 in words is "one billion, eleven million, four hundred forty-three thousand, four hundred one".