1329402918001 has 2 divisors, whose sum is σ = 1329402918002. Its totient is φ = 1329402918000.

The previous prime is 1329402917971. The next prime is 1329402918023. The reversal of 1329402918001 is 1008192049231.

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., 834034695025 + 495368222976 = 913255^2 + 703824^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329402918001 - 2⁷ = 1329402917873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1329402918301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664701459000 + 664701459001.

It is an arithmetic number, because the mean of its divisors is an integer number (664701459001).

Almost surely, 2^{1329402918001} is an apocalyptic number.

It is an amenable number.

1329402918001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1329402918001 is an equidigital number, since it uses as much as digits as its factorization.

1329402918001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 1329402918001 in words is "one trillion, three hundred twenty-nine billion, four hundred two million, nine hundred eighteen thousand, one".