1204401181897 has 2 divisors, whose sum is σ = 1204401181898. Its totient is φ = 1204401181896.

The previous prime is 1204401181889. The next prime is 1204401181909. The reversal of 1204401181897 is 7981811044021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1051898435641 + 152502746256 = 1025621^2 + 390516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204401181897 - 2³ = 1204401181889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1204401181807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602200590948 + 602200590949.

It is an arithmetic number, because the mean of its divisors is an integer number (602200590949).

Almost surely, 2^{1204401181897} is an apocalyptic number.

It is an amenable number.

1204401181897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1204401181897 is an equidigital number, since it uses as much as digits as its factorization.

1204401181897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 46.

The spelling of 1204401181897 in words is "one trillion, two hundred four billion, four hundred one million, one hundred eighty-one thousand, eight hundred ninety-seven".