311430210145 has 8 divisors (see below), whose sum is σ = 374895169704. Its totient is φ = 248358223104.

The previous prime is 311430210139. The next prime is 311430210163. The reversal of 311430210145 is 541012034113.

It can be written as a sum of positive squares in 4 ways, for example, as 5321410704 + 306108799441 = 72948^2 + 553271^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 311430210145 - 2³³ = 302840275553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98241384 + ... + 98244553.

It is an arithmetic number, because the mean of its divisors is an integer number (46861896213).

Almost surely, 2^311430210145 is an apocalyptic number.

It is an amenable number.

311430210145 is a deficient number, since it is larger than the sum of its proper divisors (63464959559).

311430210145 is a wasteful number, since it uses less digits than its factorization.

311430210145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196486259.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 311430210145 its reverse (541012034113), we get a palindrome (852442244258).

The spelling of 311430210145 in words is "three hundred eleven billion, four hundred thirty million, two hundred ten thousand, one hundred forty-five".