1211343041 has 16 divisors (see below), whose sum is σ = 1297923264. Its totient is φ = 1126523904.

The previous prime is 1211342921. The next prime is 1211343061. The reversal of 1211343041 is 1403431121.

It is not a de Polignac number, because 1211343041 - 2¹⁴ = 1211326657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1211343061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078106 + ... + 1079228.

It is an arithmetic number, because the mean of its divisors is an integer number (81120204).

Almost surely, 2^1211343041 is an apocalyptic number.

It is an amenable number.

1211343041 is a deficient number, since it is larger than the sum of its proper divisors (86580223).

1211343041 is a wasteful number, since it uses less digits than its factorization.

1211343041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1211343041 is about 34804.3537650105. The cubic root of 1211343041 is about 1065.9963464963.

Adding to 1211343041 its reverse (1403431121), we get a palindrome (2614774162).

The spelling of 1211343041 in words is "one billion, two hundred eleven million, three hundred forty-three thousand, forty-one".