1201342001389 has 2 divisors, whose sum is σ = 1201342001390. Its totient is φ = 1201342001388.

The previous prime is 1201342001341. The next prime is 1201342001441. The reversal of 1201342001389 is 9831002431021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887901021225 + 313440980164 = 942285^2 + 559858^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201342001389 - 2¹³ = 1201341993197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201342001089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600671000694 + 600671000695.

It is an arithmetic number, because the mean of its divisors is an integer number (600671000695).

Almost surely, 2^{1201342001389} is an apocalyptic number.

It is an amenable number.

1201342001389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201342001389 is an equidigital number, since it uses as much as digits as its factorization.

1201342001389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 1201342001389 in words is "one trillion, two hundred one billion, three hundred forty-two million, one thousand, three hundred eighty-nine".