1211053043 has 8 divisors (see below), whose sum is σ = 1216005648. Its totient is φ = 1206110304.

The previous prime is 1211053033. The next prime is 1211053087. The reversal of 1211053043 is 3403501121.

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

It is a cyclic number.

It is not a de Polignac number, because 1211053043 - 2¹⁰ = 1211052019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211053033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327521 + ... + 331197.

It is an arithmetic number, because the mean of its divisors is an integer number (152000706).

Almost surely, 2^1211053043 is an apocalyptic number.

1211053043 is a deficient number, since it is larger than the sum of its proper divisors (4952605).

1211053043 is an equidigital number, since it uses as much as digits as its factorization.

1211053043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1211053043 is about 34800.1873989207. The cubic root of 1211053043 is about 1065.9112724722.

Adding to 1211053043 its reverse (3403501121), we get a palindrome (4614554164).

The spelling of 1211053043 in words is "one billion, two hundred eleven million, fifty-three thousand, forty-three".