311114021431 has 4 divisors (see below), whose sum is σ = 311166928864. Its totient is φ = 311061114000.

The previous prime is 311114021381. The next prime is 311114021441. The reversal of 311114021431 is 134120411113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 311114021431 - 2¹¹ = 311114019383 is a prime.

It is a super-2 number, since 2×311114021431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311114021441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26444895 + ... + 26456656.

It is an arithmetic number, because the mean of its divisors is an integer number (77791732216).

Almost surely, 2^311114021431 is an apocalyptic number.

311114021431 is a deficient number, since it is larger than the sum of its proper divisors (52907433).

311114021431 is an equidigital number, since it uses as much as digits as its factorization.

311114021431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52907432.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 311114021431 its reverse (134120411113), we get a palindrome (445234432544).

The spelling of 311114021431 in words is "three hundred eleven billion, one hundred fourteen million, twenty-one thousand, four hundred thirty-one".