1211140041 has 32 divisors (see below), whose sum is σ = 1678357632. Its totient is φ = 776355840.

The previous prime is 1211140001. The next prime is 1211140103. The reversal of 1211140041 is 1400411121.

It is not a de Polignac number, because 1211140041 - 2⁷ = 1211139913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211140041.

It is not an unprimeable number, because it can be changed into a prime (1211140001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3869301 + ... + 3869613.

It is an arithmetic number, because the mean of its divisors is an integer number (52448676).

Almost surely, 2^1211140041 is an apocalyptic number.

It is an amenable number.

1211140041 is a deficient number, since it is larger than the sum of its proper divisors (467217591).

1211140041 is a wasteful number, since it uses less digits than its factorization.

1211140041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1211140041 is about 34801.4373410065. The cubic root of 1211140041 is about 1065.9367956946.

Adding to 1211140041 its reverse (1400411121), we get a palindrome (2611551162).

The spelling of 1211140041 in words is "one billion, two hundred eleven million, one hundred forty thousand, forty-one".