1241121421427 has 2 divisors, whose sum is σ = 1241121421428. Its totient is φ = 1241121421426.

The previous prime is 1241121421409. The next prime is 1241121421451. The reversal of 1241121421427 is 7241241211421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1241121421427 - 2¹⁰ = 1241121420403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1241121421393 and 1241121421402.

It is not a weakly prime, because it can be changed into another prime (1241121421457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620560710713 + 620560710714.

It is an arithmetic number, because the mean of its divisors is an integer number (620560710714).

Almost surely, 2^{1241121421427} is an apocalyptic number.

1241121421427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241121421427 is an equidigital number, since it uses as much as digits as its factorization.

1241121421427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 32.

Adding to 1241121421427 its reverse (7241241211421), we get a palindrome (8482362632848).

The spelling of 1241121421427 in words is "one trillion, two hundred forty-one billion, one hundred twenty-one million, four hundred twenty-one thousand, four hundred twenty-seven".