1212321041 has 2 divisors, whose sum is σ = 1212321042. Its totient is φ = 1212321040.

The previous prime is 1212321037. The next prime is 1212321091. The reversal of 1212321041 is 1401232121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1015760641 + 196560400 = 31871^2 + 14020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212321041 - 2² = 1212321037 is a prime.

It is a super-3 number, since 3×1212321041³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1212321091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606160520 + 606160521.

It is an arithmetic number, because the mean of its divisors is an integer number (606160521).

Almost surely, 2^1212321041 is an apocalyptic number.

It is an amenable number.

1212321041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212321041 is an equidigital number, since it uses as much as digits as its factorization.

1212321041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1212321041 is about 34818.4008966523. The cubic root of 1212321041 is about 1066.2831532182.

Adding to 1212321041 its reverse (1401232121), we get a palindrome (2613553162).

The spelling of 1212321041 in words is "one billion, two hundred twelve million, three hundred twenty-one thousand, forty-one".