311004330421 has 8 divisors (see below), whose sum is σ = 318657414944. Its totient is φ = 303370356240.

The previous prime is 311004330397. The next prime is 311004330463. The reversal of 311004330421 is 124033400113.

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 311004330421 - 2¹³ = 311004322229 is a prime.

It is a super-2 number, since 2×311004330421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311004330392 and 311004330401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311004330491) 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, 4744635 + ... + 4809736.

It is an arithmetic number, because the mean of its divisors is an integer number (39832176868).

Almost surely, 2^311004330421 is an apocalyptic number.

It is an amenable number.

311004330421 is a deficient number, since it is larger than the sum of its proper divisors (7653084523).

311004330421 is an equidigital number, since it uses as much as digits as its factorization.

311004330421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555171.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 311004330421 its reverse (124033400113), we get a palindrome (435037730534).

The spelling of 311004330421 in words is "three hundred eleven billion, four million, three hundred thirty thousand, four hundred twenty-one".