311202100012120 has 32 divisors (see below), whose sum is σ = 700256712632400. Its totient is φ = 124471597763968.

The previous prime is 311202100012079. The next prime is 311202100012121. The reversal of 311202100012120 is 21210001202113.

It is a junction number, because it is equal to n+sod(n) for n = 311202100012094 and 311202100012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311202100012121) 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, 288274534 + ... + 289352053.

Almost surely, 2^{311202100012120} is an apocalyptic number.

It is an amenable number.

311202100012120 is an abundant number, since it is smaller than the sum of its proper divisors (389054612620280).

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

311202100012120 is a wasteful number, since it uses less digits than its factorization.

311202100012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577640067 (or 577640063 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 311202100012120 its reverse (21210001202113), we get a palindrome (332412101214233).

The spelling of 311202100012120 in words is "three hundred eleven trillion, two hundred two billion, one hundred million, twelve thousand, one hundred twenty".