311430011200421 has 4 divisors (see below), whose sum is σ = 311430167745600. Its totient is φ = 311429854655244.

The previous prime is 311430011200339. The next prime is 311430011200579. The reversal of 311430011200421 is 124002110034113.

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.

It is a cyclic number.

It is not a de Polignac number, because 311430011200421 - 2²⁶ = 311429944091557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430011200921) 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, 75249581 + ... + 79280258.

It is an arithmetic number, because the mean of its divisors is an integer number (77857541936400).

Almost surely, 2^{311430011200421} is an apocalyptic number.

It is an amenable number.

311430011200421 is a deficient number, since it is larger than the sum of its proper divisors (156545179).

311430011200421 is a wasteful number, since it uses less digits than its factorization.

311430011200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156545178.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 311430011200421 its reverse (124002110034113), we get a palindrome (435432121234534).

The spelling of 311430011200421 in words is "three hundred eleven trillion, four hundred thirty billion, eleven million, two hundred thousand, four hundred twenty-one".