321431202134123 has 4 divisors (see below), whose sum is σ = 321433103216928. Its totient is φ = 321429301051320.

The previous prime is 321431202134117. The next prime is 321431202134129.

321431202134123 is nontrivially palindromic in base 10.

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

It is an interprime number because it is at equal distance from previous prime (321431202134117) and next prime (321431202134129).

It is a cyclic number.

It is not a de Polignac number, because 321431202134123 - 2¹⁰ = 321431202133099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321431202134123.

It is not an unprimeable number, because it can be changed into a prime (321431202134129) 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, 950287763 + ... + 950625948.

It is an arithmetic number, because the mean of its divisors is an integer number (80358275804232).

Almost surely, 2^{321431202134123} is an apocalyptic number.

321431202134123 is a deficient number, since it is larger than the sum of its proper divisors (1901082805).

321431202134123 is a wasteful number, since it uses less digits than its factorization.

321431202134123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901082804.

The product of its (nonzero) digits is 20736, while the sum is 32.

It can be divided in two parts, 32143120 and 2134123, that added together give a palindrome (34277243).

The spelling of 321431202134123 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, two hundred two million, one hundred thirty-four thousand, one hundred twenty-three".