1399338424061 has 2 divisors, whose sum is σ = 1399338424062. Its totient is φ = 1399338424060.

The previous prime is 1399338424051. The next prime is 1399338424063. The reversal of 1399338424061 is 1604248339931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1186997176036 + 212341248025 = 1089494^2 + 460805^2 .

It is a cyclic number.

It is not a de Polignac number, because 1399338424061 - 2¹⁰ = 1399338423037 is a prime.

Together with 1399338424063, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1399338423994 and 1399338424012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1399338424063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699669212030 + 699669212031.

It is an arithmetic number, because the mean of its divisors is an integer number (699669212031).

Almost surely, 2^{1399338424061} is an apocalyptic number.

It is an amenable number.

1399338424061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399338424061 is an equidigital number, since it uses as much as digits as its factorization.

1399338424061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 1399338424061 in words is "one trillion, three hundred ninety-nine billion, three hundred thirty-eight million, four hundred twenty-four thousand, sixty-one".