311431310304423 has 8 divisors (see below), whose sum is σ = 415242284699136. Its totient is φ = 207620604723000.

The previous prime is 311431310304343. The next prime is 311431310304479. The reversal of 311431310304423 is 324403013134113.

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

It is not a de Polignac number, because 311431310304423 - 2¹⁷ = 311431310173351 is a prime.

It is a super-2 number, since 2×311431310304423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311431310304523) 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, 64484343 + ... + 69145448.

It is an arithmetic number, because the mean of its divisors is an integer number (51905285587392).

Almost surely, 2^{311431310304423} is an apocalyptic number.

311431310304423 is a deficient number, since it is larger than the sum of its proper divisors (103810974394713).

311431310304423 is a wasteful number, since it uses less digits than its factorization.

311431310304423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134406645.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 311431310304423 its reverse (324403013134113), we get a palindrome (635834323438536).

The spelling of 311431310304423 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred ten million, three hundred four thousand, four hundred twenty-three".