1383651685301 has 2 divisors, whose sum is σ = 1383651685302. Its totient is φ = 1383651685300.

The previous prime is 1383651685279. The next prime is 1383651685303. The reversal of 1383651685301 is 1035861563831.

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., 745891322500 + 637760362801 = 863650^2 + 798599^2 .

It is a cyclic number.

It is not a de Polignac number, because 1383651685301 - 2³⁴ = 1366471816117 is a prime.

It is a super-3 number, since 3×1383651685301³ (a number of 37 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 1383651685303, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1383651685301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1383651685303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691825842650 + 691825842651.

It is an arithmetic number, because the mean of its divisors is an integer number (691825842651).

Almost surely, 2^{1383651685301} is an apocalyptic number.

It is an amenable number.

1383651685301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383651685301 is an equidigital number, since it uses as much as digits as its factorization.

1383651685301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 1383651685301 in words is "one trillion, three hundred eighty-three billion, six hundred fifty-one million, six hundred eighty-five thousand, three hundred one".