1303939400189 has 2 divisors, whose sum is σ = 1303939400190. Its totient is φ = 1303939400188.

The previous prime is 1303939400173. The next prime is 1303939400249. The reversal of 1303939400189 is 9810049393031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071463063225 + 232476336964 = 1035115^2 + 482158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303939400189 - 2⁴ = 1303939400173 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303939400119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651969700094 + 651969700095.

It is an arithmetic number, because the mean of its divisors is an integer number (651969700095).

Almost surely, 2^{1303939400189} is an apocalyptic number.

It is an amenable number.

1303939400189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303939400189 is an equidigital number, since it uses as much as digits as its factorization.

1303939400189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 1303939400189 in words is "one trillion, three hundred three billion, nine hundred thirty-nine million, four hundred thousand, one hundred eighty-nine".