1420334201261 has 2 divisors, whose sum is σ = 1420334201262. Its totient is φ = 1420334201260.

The previous prime is 1420334201201. The next prime is 1420334201263. The reversal of 1420334201261 is 1621024330241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 842154936100 + 578179265161 = 917690^2 + 760381^2 .

It is an emirp because it is prime and its reverse (1621024330241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420334201261 - 2⁶ = 1420334201197 is a prime.

Together with 1420334201263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420334201263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710167100630 + 710167100631.

It is an arithmetic number, because the mean of its divisors is an integer number (710167100631).

Almost surely, 2^{1420334201261} is an apocalyptic number.

It is an amenable number.

1420334201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420334201261 is an equidigital number, since it uses as much as digits as its factorization.

1420334201261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 1420334201261 in words is "one trillion, four hundred twenty billion, three hundred thirty-four million, two hundred one thousand, two hundred sixty-one".