1201809087373 has 2 divisors, whose sum is σ = 1201809087374. Its totient is φ = 1201809087372.

The previous prime is 1201809087341. The next prime is 1201809087377. The reversal of 1201809087373 is 3737809081021.

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., 1046696778724 + 155112308649 = 1023082^2 + 393843^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201809087373 - 2⁵ = 1201809087341 is a prime.

It is a super-2 number, since 2×1201809087373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201809087377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600904543686 + 600904543687.

It is an arithmetic number, because the mean of its divisors is an integer number (600904543687).

Almost surely, 2^{1201809087373} is an apocalyptic number.

It is an amenable number.

1201809087373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201809087373 is an equidigital number, since it uses as much as digits as its factorization.

1201809087373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 1201809087373 in words is "one trillion, two hundred one billion, eight hundred nine million, eighty-seven thousand, three hundred seventy-three".