1241296476421 has 2 divisors, whose sum is σ = 1241296476422. Its totient is φ = 1241296476420.

The previous prime is 1241296476419. The next prime is 1241296476449. The reversal of 1241296476421 is 1246746921421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 678629964100 + 562666512321 = 823790^2 + 750111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241296476421 - 2¹ = 1241296476419 is a prime.

Together with 1241296476419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241299476421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620648238210 + 620648238211.

It is an arithmetic number, because the mean of its divisors is an integer number (620648238211).

Almost surely, 2^{1241296476421} is an apocalyptic number.

It is an amenable number.

1241296476421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241296476421 is an equidigital number, since it uses as much as digits as its factorization.

1241296476421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 49.

The spelling of 1241296476421 in words is "one trillion, two hundred forty-one billion, two hundred ninety-six million, four hundred seventy-six thousand, four hundred twenty-one".