311100123020 has 12 divisors (see below), whose sum is σ = 653310258384. Its totient is φ = 124440049200.

The previous prime is 311100123007. The next prime is 311100123067. The reversal of 311100123020 is 20321001113.

It is a junction number, because it is equal to n+sod(n) for n = 311100122986 and 311100123004.

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 3 ways as a sum of consecutive naturals, for example, 7777503056 + ... + 7777503095.

It is an arithmetic number, because the mean of its divisors is an integer number (54442521532).

Almost surely, 2^311100123020 is an apocalyptic number.

It is an amenable number.

311100123020 is an abundant number, since it is smaller than the sum of its proper divisors (342210135364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311100123020 is a wasteful number, since it uses less digits than its factorization.

311100123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555006160 (or 15555006158 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 311100123020 its reverse (20321001113), we get a palindrome (331421124133).

The spelling of 311100123020 in words is "three hundred eleven billion, one hundred million, one hundred twenty-three thousand, twenty".