1329138414061 has 2 divisors, whose sum is σ = 1329138414062. Its totient is φ = 1329138414060.

The previous prime is 1329138414007. The next prime is 1329138414089. The reversal of 1329138414061 is 1604148319231.

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., 1218186801225 + 110951612836 = 1103715^2 + 333094^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329138414061 - 2⁹ = 1329138413549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1329138413999 and 1329138414017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1329138414001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664569207030 + 664569207031.

It is an arithmetic number, because the mean of its divisors is an integer number (664569207031).

Almost surely, 2^{1329138414061} is an apocalyptic number.

It is an amenable number.

1329138414061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329138414061 is an equidigital number, since it uses as much as digits as its factorization.

1329138414061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 1329138414061 in words is "one trillion, three hundred twenty-nine billion, one hundred thirty-eight million, four hundred fourteen thousand, sixty-one".