3120000311 has 4 divisors (see below), whose sum is σ = 3120664800. Its totient is φ = 3119335824.

The previous prime is 3120000307. The next prime is 3120000313. The reversal of 3120000311 is 1130000213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3120000311 - 2² = 3120000307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120000292 and 3120000301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3120000313) 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, 325151 + ... + 334608.

It is an arithmetic number, because the mean of its divisors is an integer number (780166200).

Almost surely, 2^3120000311 is an apocalyptic number.

3120000311 is a deficient number, since it is larger than the sum of its proper divisors (664489).

3120000311 is an equidigital number, since it uses as much as digits as its factorization.

3120000311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664488.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 3120000311 is about 55856.9629589723. The cubic root of 3120000311 is about 1461.2287633641.

Adding to 3120000311 its reverse (1130000213), we get a palindrome (4250000524).

The spelling of 3120000311 in words is "three billion, one hundred twenty million, three hundred eleven", and thus it is an aban number.