311020303122009 has 48 divisors (see below), whose sum is σ = 495128532458560. Its totient is φ = 186920414432640.

The previous prime is 311020303121993. The next prime is 311020303122049. The reversal of 311020303122009 is 900221303020113.

311020303122009 is a `hidden beast` number, since 3 + 110 + 2 + 0 + 30 + 312 + 200 + 9 = 666.

It is not a de Polignac number, because 311020303122009 - 2⁴ = 311020303121993 is a prime.

It is a super-2 number, since 2×311020303122009² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311020303122049) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32542494 + ... + 41000664.

Almost surely, 2^{311020303122009} is an apocalyptic number.

311020303122009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

311020303122009 is a deficient number, since it is larger than the sum of its proper divisors (184108229336551).

311020303122009 is a wasteful number, since it uses less digits than its factorization.

311020303122009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8465542 (or 8465539 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The spelling of 311020303122009 in words is "three hundred eleven trillion, twenty billion, three hundred three million, one hundred twenty-two thousand, nine".