311430224013021 has 32 divisors (see below), whose sum is σ = 473856710695680. Its totient is φ = 202004990192448.

The previous prime is 311430224012989. The next prime is 311430224013037. The reversal of 311430224013021 is 120310422034113.

311430224013021 is a `hidden beast` number, since 3 + 1 + 1 + 430 + 224 + 0 + 1 + 3 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 311430224013021 - 2⁵ = 311430224012989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430224013721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50635200 + ... + 56451606.

It is an arithmetic number, because the mean of its divisors is an integer number (14808022209240).

Almost surely, 2^{311430224013021} is an apocalyptic number.

It is an amenable number.

311430224013021 is a deficient number, since it is larger than the sum of its proper divisors (162426486682659).

311430224013021 is a wasteful number, since it uses less digits than its factorization.

311430224013021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870050 (or 5870044 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 311430224013021 its reverse (120310422034113), we get a palindrome (431740646047134).

The spelling of 311430224013021 in words is "three hundred eleven trillion, four hundred thirty billion, two hundred twenty-four million, thirteen thousand, twenty-one".