321120599949 has 6 divisors (see below), whose sum is σ = 463840866606. Its totient is φ = 214080399960.

The previous prime is 321120599897. The next prime is 321120599993. The reversal of 321120599949 is 949995021123.

321120599949 is a `hidden beast` number, since 3 + 2 + 1 + 1 + 2 + 0 + 599 + 9 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 279497255625 + 41623344324 = 528675^2 + 204018^2 .

It is not a de Polignac number, because 321120599949 - 2¹² = 321120595853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321120599895 and 321120599904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321120529949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17840033322 + ... + 17840033339.

It is an arithmetic number, because the mean of its divisors is an integer number (77306811101).

Almost surely, 2^321120599949 is an apocalyptic number.

It is an amenable number.

321120599949 is a deficient number, since it is larger than the sum of its proper divisors (142720266657).

321120599949 is a wasteful number, since it uses less digits than its factorization.

321120599949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35680066667 (or 35680066664 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 321120599949 in words is "three hundred twenty-one billion, one hundred twenty million, five hundred ninety-nine thousand, nine hundred forty-nine".