1209859601331 has 8 divisors (see below), whose sum is σ = 1708037084304. Its totient is φ = 759127592960.

The previous prime is 1209859601309. The next prime is 1209859601339. The reversal of 1209859601331 is 1331069589021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1209859601331 - 2⁶ = 1209859601267 is a prime.

It is a super-2 number, since 2×1209859601331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1209859601339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11861368590 + ... + 11861368691.

It is an arithmetic number, because the mean of its divisors is an integer number (213504635538).

Almost surely, 2^{1209859601331} is an apocalyptic number.

1209859601331 is a deficient number, since it is larger than the sum of its proper divisors (498177482973).

1209859601331 is a wasteful number, since it uses less digits than its factorization.

1209859601331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23722737301.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 1209859601331 in words is "one trillion, two hundred nine billion, eight hundred fifty-nine million, six hundred one thousand, three hundred thirty-one".