3111212013 has 64 divisors (see below), whose sum is σ = 5215795200. Its totient is φ = 1605922560.

The previous prime is 3111211997. The next prime is 3111212029. The reversal of 3111212013 is 3102121113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3111211997) and next prime (3111212029).

It is not a de Polignac number, because 3111212013 - 2⁴ = 3111211997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3111211983 and 3111212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111212053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6748603 + ... + 6749063.

It is an arithmetic number, because the mean of its divisors is an integer number (81496800).

Almost surely, 2^3111212013 is an apocalyptic number.

It is an amenable number.

3111212013 is a deficient number, since it is larger than the sum of its proper divisors (2104583187).

3111212013 is a wasteful number, since it uses less digits than its factorization.

3111212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 3111212013 is about 55778.2396011204. The cubic root of 3111212013 is about 1459.8554953308.

Adding to 3111212013 its reverse (3102121113), we get a palindrome (6213333126).

The spelling of 3111212013 in words is "three billion, one hundred eleven million, two hundred twelve thousand, thirteen".