321120131203 has 4 divisors (see below), whose sum is σ = 338021190760. Its totient is φ = 304219071648.

The previous prime is 321120131107. The next prime is 321120131209. The reversal of 321120131203 is 302131021123.

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

It is a cyclic number.

It is not a de Polignac number, because 321120131203 - 2⁹ = 321120130691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 16901059537 = 321120131203 / (3 + 2 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 2 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321120131209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8450529750 + ... + 8450529787.

It is an arithmetic number, because the mean of its divisors is an integer number (84505297690).

Almost surely, 2^321120131203 is an apocalyptic number.

321120131203 is a deficient number, since it is larger than the sum of its proper divisors (16901059557).

321120131203 is a wasteful number, since it uses less digits than its factorization.

321120131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16901059556.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321120131203 its reverse (302131021123), we get a palindrome (623251152326).

The spelling of 321120131203 in words is "three hundred twenty-one billion, one hundred twenty million, one hundred thirty-one thousand, two hundred three".