1011200441 has 4 divisors (see below), whose sum is σ = 1032715392. Its totient is φ = 989685492.

The previous prime is 1011200431. The next prime is 1011200471. The reversal of 1011200441 is 1440021101.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1440021101 = 271 ⋅5313731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011200441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011200431) 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, 10757405 + ... + 10757498.

It is an arithmetic number, because the mean of its divisors is an integer number (258178848).

Almost surely, 2^1011200441 is an apocalyptic number.

It is an amenable number.

1011200441 is a deficient number, since it is larger than the sum of its proper divisors (21514951).

1011200441 is an equidigital number, since it uses as much as digits as its factorization.

1011200441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514950.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1011200441 is about 31799.3779970615. The cubic root of 1011200441 is about 1003.7196275498.

Adding to 1011200441 its reverse (1440021101), we get a palindrome (2451221542).

The spelling of 1011200441 in words is "one billion, eleven million, two hundred thousand, four hundred forty-one".