320203211123 has 8 divisors (see below), whose sum is σ = 323444444736. Its totient is φ = 316963368000.

The previous prime is 320203211101. The next prime is 320203211147. The reversal of 320203211123 is 321112302023.

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 320203211123 - 2²⁰ = 320202162547 is a prime.

It is a super-2 number, since 2×320203211123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320203211095 and 320203211104.

It is not an unprimeable number, because it can be changed into a prime (320203211183) 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, 118415 + ... + 808967.

It is an arithmetic number, because the mean of its divisors is an integer number (40430555592).

Almost surely, 2^320203211123 is an apocalyptic number.

320203211123 is a deficient number, since it is larger than the sum of its proper divisors (3241233613).

320203211123 is a wasteful number, since it uses less digits than its factorization.

320203211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695245.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320203211123 its reverse (321112302023), we get a palindrome (641315513146).

The spelling of 320203211123 in words is "three hundred twenty billion, two hundred three million, two hundred eleven thousand, one hundred twenty-three".