321142440131 has 8 divisors (see below), whose sum is σ = 323619582144. Its totient is φ = 318673681920.

The previous prime is 321142440079. The next prime is 321142440251. The reversal of 321142440131 is 131044241123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321142440131 - 2⁶ = 321142440067 is a prime.

It is a super-2 number, since 2×321142440131² (a number of 24 digits) contains 22 as substring.

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 321142440131.

It is not an unprimeable number, because it can be changed into a prime (321142440631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2019035 + ... + 2172276.

It is an arithmetic number, because the mean of its divisors is an integer number (40452447768).

Almost surely, 2^321142440131 is an apocalyptic number.

321142440131 is a deficient number, since it is larger than the sum of its proper divisors (2477142013).

321142440131 is a wasteful number, since it uses less digits than its factorization.

321142440131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4191901.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 321142440131 its reverse (131044241123), we get a palindrome (452186681254).

The spelling of 321142440131 in words is "three hundred twenty-one billion, one hundred forty-two million, four hundred forty thousand, one hundred thirty-one".