311430343023 has 8 divisors (see below), whose sum is σ = 461378286000. Its totient is φ = 207620228664.

The previous prime is 311430343019. The next prime is 311430343057. The reversal of 311430343023 is 320343034113.

311430343023 is a `hidden beast` number, since 311 + 4 + 3 + 0 + 343 + 0 + 2 + 3 = 666.

It is not a de Polignac number, because 311430343023 - 2² = 311430343019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 11534457149 = 311430343023 / (3 + 1 + 1 + 4 + 3 + 0 + 3 + 4 + 3 + 0 + 2 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430343073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5767228548 + ... + 5767228601.

It is an arithmetic number, because the mean of its divisors is an integer number (57672285750).

Almost surely, 2^311430343023 is an apocalyptic number.

311430343023 is a deficient number, since it is larger than the sum of its proper divisors (149947942977).

311430343023 is a wasteful number, since it uses less digits than its factorization.

311430343023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11534457158 (or 11534457152 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 311430343023 its reverse (320343034113), we get a palindrome (631773377136).

The spelling of 311430343023 in words is "three hundred eleven billion, four hundred thirty million, three hundred forty-three thousand, twenty-three".