321140041 has 4 divisors (see below), whose sum is σ = 321834112. Its totient is φ = 320445972.

The previous prime is 321139993. The next prime is 321140089. The reversal of 321140041 is 140041123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140041123 = 311 ⋅450293.

It is an interprime number because it is at equal distance from previous prime (321139993) and next prime (321140089).

It is a cyclic number.

It is not a de Polignac number, because 321140041 - 2²³ = 312751433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321139997 and 321140024.

It is not an unprimeable number, because it can be changed into a prime (321140341) 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, 346341 + ... + 347266.

It is an arithmetic number, because the mean of its divisors is an integer number (80458528).

Almost surely, 2^321140041 is an apocalyptic number.

It is an amenable number.

321140041 is a deficient number, since it is larger than the sum of its proper divisors (694071).

321140041 is an equidigital number, since it uses as much as digits as its factorization.

321140041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694070.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 321140041 is about 17920.3806042171. The cubic root of 321140041 is about 684.8016837594.

Adding to 321140041 its reverse (140041123), we get a palindrome (461181164).

The spelling of 321140041 in words is "three hundred twenty-one million, one hundred forty thousand, forty-one".