1212131441 has 8 divisors (see below), whose sum is σ = 1270510080. Its totient is φ = 1154225952.

The previous prime is 1212131423. The next prime is 1212131443. The reversal of 1212131441 is 1441312121.

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 1212131441 - 2⁶ = 1212131377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212131443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113036 + ... + 123293.

It is an arithmetic number, because the mean of its divisors is an integer number (158813760).

Almost surely, 2^1212131441 is an apocalyptic number.

It is an amenable number.

1212131441 is a deficient number, since it is larger than the sum of its proper divisors (58378639).

1212131441 is a wasteful number, since it uses less digits than its factorization.

1212131441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236575.

The product of its digits is 192, while the sum is 20.

The square root of 1212131441 is about 34815.6780919172. The cubic root of 1212131441 is about 1066.2275634805.

Adding to 1212131441 its reverse (1441312121), we get a palindrome (2653443562).

The spelling of 1212131441 in words is "one billion, two hundred twelve million, one hundred thirty-one thousand, four hundred forty-one".