311201320030 has 8 divisors (see below), whose sum is σ = 560162376072. Its totient is φ = 124480528008.

The previous prime is 311201320009. The next prime is 311201320033. The reversal of 311201320030 is 30023102113.

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

It is a super-3 number, since 3×311201320030³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311201319986 and 311201320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311201320033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15560065992 + ... + 15560066011.

It is an arithmetic number, because the mean of its divisors is an integer number (70020297009).

Almost surely, 2^311201320030 is an apocalyptic number.

311201320030 is a deficient number, since it is larger than the sum of its proper divisors (248961056042).

311201320030 is a wasteful number, since it uses less digits than its factorization.

311201320030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31120132010.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 311201320030 its reverse (30023102113), we get a palindrome (341224422143).

The spelling of 311201320030 in words is "three hundred eleven billion, two hundred one million, three hundred twenty thousand, thirty".