321140345342 has 4 divisors (see below), whose sum is σ = 481710518016. Its totient is φ = 160570172670.

The previous prime is 321140345311. The next prime is 321140345387. The reversal of 321140345342 is 243543041123.

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

It is a super-2 number, since 2×321140345342² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321140345299 and 321140345308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80285086334 + ... + 80285086337.

It is an arithmetic number, because the mean of its divisors is an integer number (120427629504).

Almost surely, 2^321140345342 is an apocalyptic number.

321140345342 is a deficient number, since it is larger than the sum of its proper divisors (160570172674).

321140345342 is a wasteful number, since it uses less digits than its factorization.

321140345342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160570172673.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 321140345342 its reverse (243543041123), we get a palindrome (564683386465).

The spelling of 321140345342 in words is "three hundred twenty-one billion, one hundred forty million, three hundred forty-five thousand, three hundred forty-two".