1213000441 has 4 divisors (see below), whose sum is σ = 1213078372. Its totient is φ = 1212922512.

The previous prime is 1213000403. The next prime is 1213000469. The reversal of 1213000441 is 1440003121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1440003121 = 97 ⋅14845393.

It can be written as a sum of positive squares in 2 ways, for example, as 578162025 + 634838416 = 24045^2 + 25196^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213000441 - 2¹¹ = 1212998393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213000141) 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, 6726 + ... + 49711.

It is an arithmetic number, because the mean of its divisors is an integer number (303269593).

Almost surely, 2^1213000441 is an apocalyptic number.

It is an amenable number.

1213000441 is a deficient number, since it is larger than the sum of its proper divisors (77931).

1213000441 is an equidigital number, since it uses as much as digits as its factorization.

1213000441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77930.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1213000441 is about 34828.1558656211. The cubic root of 1213000441 is about 1066.4823021963.

Adding to 1213000441 its reverse (1440003121), we get a palindrome (2653003562).

The spelling of 1213000441 in words is "one billion, two hundred thirteen million, four hundred forty-one", and thus it is an aban number.