1371420070309 has 2 divisors, whose sum is σ = 1371420070310. Its totient is φ = 1371420070308.

The previous prime is 1371420070219. The next prime is 1371420070367. The reversal of 1371420070309 is 9030700241731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 935882108100 + 435537962209 = 967410^2 + 659953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1371420070309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1371420070609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 685710035154 + 685710035155.

It is an arithmetic number, because the mean of its divisors is an integer number (685710035155).

Almost surely, 2^{1371420070309} is an apocalyptic number.

It is an amenable number.

1371420070309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1371420070309 is an equidigital number, since it uses as much as digits as its factorization.

1371420070309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The spelling of 1371420070309 in words is "one trillion, three hundred seventy-one billion, four hundred twenty million, seventy thousand, three hundred nine".