311155353230213 has 8 divisors (see below), whose sum is σ = 313607135262720. Its totient is φ = 308703598383600.

The previous prime is 311155353230207. The next prime is 311155353230237. The reversal of 311155353230213 is 312032353551113.

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 311155353230213 - 2⁸ = 311155353229957 is a prime.

It is a super-2 number, since 2×311155353230213² (a number of 30 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 (311155353230243) 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 7 ways as a sum of consecutive naturals, for example, 16497968 + ... + 29908086.

It is an arithmetic number, because the mean of its divisors is an integer number (39200891907840).

Almost surely, 2^{311155353230213} is an apocalyptic number.

It is an amenable number.

311155353230213 is a deficient number, since it is larger than the sum of its proper divisors (2451782032507).

311155353230213 is a wasteful number, since it uses less digits than its factorization.

311155353230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592947.

The product of its (nonzero) digits is 121500, while the sum is 38.

The spelling of 311155353230213 in words is "three hundred eleven trillion, one hundred fifty-five billion, three hundred fifty-three million, two hundred thirty thousand, two hundred thirteen".