311430001133421 has 16 divisors (see below), whose sum is σ = 472630896030720. Its totient is φ = 202556098297440.

The previous prime is 311430001133369. The next prime is 311430001133429. The reversal of 311430001133421 is 124331100034113.

311430001133421 is a `hidden beast` number, since 3 + 1 + 1 + 4 + 300 + 0 + 1 + 1 + 334 + 21 = 666.

It is not a de Polignac number, because 311430001133421 - 2²⁶ = 311429934024557 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 (311430001133429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140663956045 + ... + 140663958258.

It is an arithmetic number, because the mean of its divisors is an integer number (29539431001920).

Almost surely, 2^{311430001133421} is an apocalyptic number.

It is an amenable number.

311430001133421 is a deficient number, since it is larger than the sum of its proper divisors (161200894897299).

311430001133421 is a wasteful number, since it uses less digits than its factorization.

311430001133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281327914353 (or 281327914347 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 311430001133421 its reverse (124331100034113), we get a palindrome (435761101167534).

The spelling of 311430001133421 in words is "three hundred eleven trillion, four hundred thirty billion, one million, one hundred thirty-three thousand, four hundred twenty-one".