1213343140041 has 36 divisors (see below), whose sum is σ = 1836097659396. Its totient is φ = 772046299200.

The previous prime is 1213343140013. The next prime is 1213343140081. The reversal of 1213343140041 is 1400413433121.

1213343140041 is a `hidden beast` number, since 1 + 213 + 3 + 4 + 3 + 1 + 400 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 363681363600 + 849661776441 = 603060^2 + 921771^2 .

It is not a de Polignac number, because 1213343140041 - 2¹⁰ = 1213343139017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213343139987 and 1213343140014.

It is not an unprimeable number, because it can be changed into a prime (1213343140081) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1918411 + ... + 2471231.

It is an arithmetic number, because the mean of its divisors is an integer number (51002712761).

Almost surely, 2^{1213343140041} is an apocalyptic number.

It is an amenable number.

1213343140041 is a deficient number, since it is larger than the sum of its proper divisors (622754519355).

1213343140041 is a wasteful number, since it uses less digits than its factorization.

1213343140041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553334 (or 553308 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1213343140041 its reverse (1400413433121), we get a palindrome (2613756573162).

The spelling of 1213343140041 in words is "one trillion, two hundred thirteen billion, three hundred forty-three million, one hundred forty thousand, forty-one".