321131534249 has 8 divisors (see below), whose sum is σ = 336755791560. Its totient is φ = 305810660736.

The previous prime is 321131534221. The next prime is 321131534263. The reversal of 321131534249 is 942435131123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141827560000 + 179303974249 = 376600^2 + 423443^2 .

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 321131534249 - 2⁸ = 321131533993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321131534209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75843782 + ... + 75848015.

It is an arithmetic number, because the mean of its divisors is an integer number (42094473945).

Almost surely, 2^321131534249 is an apocalyptic number.

It is an amenable number.

321131534249 is a deficient number, since it is larger than the sum of its proper divisors (15624257311).

321131534249 is a wasteful number, since it uses less digits than its factorization.

321131534249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151691899.

The product of its digits is 77760, while the sum is 38.

The spelling of 321131534249 in words is "three hundred twenty-one billion, one hundred thirty-one million, five hundred thirty-four thousand, two hundred forty-nine".