321120123113 has 4 divisors (see below), whose sum is σ = 323961894228. Its totient is φ = 318278352000.

The previous prime is 321120123073. The next prime is 321120123127. The reversal of 321120123113 is 311321021123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 176608381504 + 144511741609 = 420248^2 + 380147^2 .

It is a cyclic number.

It is not a de Polignac number, because 321120123113 - 2¹⁸ = 321119860969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321120123913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420885388 + ... + 1420885613.

It is an arithmetic number, because the mean of its divisors is an integer number (80990473557).

Almost surely, 2^321120123113 is an apocalyptic number.

It is an amenable number.

321120123113 is a deficient number, since it is larger than the sum of its proper divisors (2841771115).

321120123113 is a wasteful number, since it uses less digits than its factorization.

321120123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841771114.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321120123113 its reverse (311321021123), we get a palindrome (632441144236).

The spelling of 321120123113 in words is "three hundred twenty-one billion, one hundred twenty million, one hundred twenty-three thousand, one hundred thirteen".