321023404320123 has 16 divisors (see below), whose sum is σ = 428090004636800. Its totient is φ = 213986204766720.

The previous prime is 321023404320107. The next prime is 321023404320173.

It is a happy number.

321023404320123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321023404320123 - 2⁴ = 321023404320107 is a prime.

It is a super-2 number, since 2×321023404320123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321023404320173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145844123 + ... + 1146124251.

It is an arithmetic number, because the mean of its divisors is an integer number (26755625289800).

Almost surely, 2^{321023404320123} is an apocalyptic number.

321023404320123 is a deficient number, since it is larger than the sum of its proper divisors (107066600316677).

321023404320123 is a wasteful number, since it uses less digits than its factorization.

321023404320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331242.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 32102340 and 4320123, that added together give a palindrome (36422463).

The spelling of 321023404320123 in words is "three hundred twenty-one trillion, twenty-three billion, four hundred four million, three hundred twenty thousand, one hundred twenty-three".