321023140413442 has 4 divisors (see below), whose sum is σ = 481534710620166. Its totient is φ = 160511570206720.

The previous prime is 321023140413433. The next prime is 321023140413593. The reversal of 321023140413442 is 244314041320123.

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

It can be written as a sum of positive squares in only one way, i.e., 182927761956241 + 138095378457201 = 13525079^2 + 11751399^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321023140413398 and 321023140413407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80255785103359 + ... + 80255785103362.

Almost surely, 2^{321023140413442} is an apocalyptic number.

321023140413442 is a deficient number, since it is larger than the sum of its proper divisors (160511570206724).

321023140413442 is a wasteful number, since it uses less digits than its factorization.

321023140413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160511570206723.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 321023140413442 its reverse (244314041320123), we get a palindrome (565337181733565).

The spelling of 321023140413442 in words is "three hundred twenty-one trillion, twenty-three billion, one hundred forty million, four hundred thirteen thousand, four hundred forty-two".